National Pokédex #0924 · Generation 9

Tandemaus

Exhibiting great teamwork, they use their incisors to cut pieces out of any material that might be useful for a nest, then make off with them.

Natural spawnRaid denEvolution chain

Quick answer

How do you get Tandemaus?

Tandemaus can spawn in Forest, Flower Forest, Birch Forest, and 38 other eligible biomes (Search: On land; Sky light: Bright; Ground: Natural). It appears in tier 2 raids. Check the complete conditions below; these routes reflect AshRun's installed ATMons files.

AshRun ATMons 1.3.0 · Checked 2026-10-16 · Sources & limitations

AshRun locations

How to obtain Tandemaus

5 places to look

Where to look in the wild

Choose one location below and meet its conditions together. Separate cards are alternative routes. A rarity label describes a spawn pool, not the chance of finding one on each attempt.

Eligible biomes (41)

Forest + 40 more

Expanded from server category: Temperate

Level6-31RarityCommon

Search: On land
Sky light: Bright
Ground: Natural

Excluded when this matches: Ground: Farmland.
Excluded when all of these match together: Near: Village; Nearby: Concrete Blocks.
0.25× relative spawn weight when Time: Daytime. This changes selection weight, not a guaranteed encounter chance.

Eligible biomes (104)

Mushroom Fields + 103 more

Expanded from server category: Overworld

Level6-31RarityCommon

Search: On land
Sky light: Bright
Nearby: Concrete Blocks
Ground: Natural

Excluded when this matches: Biome: Freezing / Sandy.
Excluded when this matches: Ground: Farmland.
Excluded when this matches: Near: Village / Trail Ruins.
0.25× relative spawn weight when Time: Daytime. This changes selection weight, not a guaranteed encounter chance.

Eligible biomes (104)

Mushroom Fields + 103 more

Expanded from server category: Overworld

Level6-31RarityCommon

Search: On land
Sky light: Bright
Near: Village
Ground: Natural

Excluded when this matches: Biome: Freezing / Sandy.
Excluded when this matches: Ground: Farmland.
0.25× relative spawn weight when Time: Daytime. This changes selection weight, not a guaranteed encounter chance.

Eligible biomes (152)

Mushroom Fields + 151 more

Expanded from server category: Overworld

Level6-31RarityCommon

Search: On land
Under cover
Height: Y 62 or higher
Near: Mansion / Woodland Mansion
Nearby: Mansion Blocks
Ground: Birch Planks / Double Smooth Stone Slab / Oak Planks / Polished Andesite / Wool / Wool Carpets

Eligible biomes (4)

Skyroot Meadow + 3 more

Expanded from server category: Aether

Level6-31RarityCommon

Search: On land
Sky light: Bright
Ground: Natural

Excluded when this matches: Ground: Farmland.

Raid den

Tier 2 · Normal

Relative boss weight 20. Defined moves: Bullet Seed, Double Hit, Echoed Voice, Pound.

Compare raid tiers and encounters →

Before you throw a ball

Catching Tandemaus

If you encounter a wild Tandemaus, an ordinary throw outside battle requires your first non-fainted party Pokémon to be at least its level.

Party order matters: the game checks the first conscious Pokémon, not the highest level anywhere in your team.
With no conscious party Pokémon, this outside-battle rule allows only targets up to level 15.
A guaranteed-catch ball bypasses this ordinary level check. You can also battle a wild target and use a ball during your turn.

These rules describe wild encounters. Raids and scripted encounters may use their own capture flow. Read the catching guide and blocked-throw checklist · Checked 2026-10-16.

Base catch-rate value: 150. This is a species value, not a percentage or a promise that a particular ball will work.

Battle profile

Base stats

305 total

Type weaknesses & resistances

Damage taken by Tandemaus with Normal typing:

Weak to: Fighting 2×
Resists: None by typing alone
Immune to: Ghost 0×

Unlisted move types deal normal (1×) damage. Both types are combined. Abilities, held items, moves, weather, Terastallization and form changes can alter the result.

Base stat values

Hp50

Attack50

Defence45

Special Attack40

Special Defence45

Speed75

Abilities

Run Away
Pickup
Own Tempo Hidden

Training

Base experience: 61
Growth: Fast
EV yield: Hp: 0 · Attack: 0 · Defence: 0 · Special Attack: 0 · Special Defence: 0 · Speed: 1
Friendship: 50

Progression

Evolution & forms

Follow the requirements on each arrow, then open the next Pokémon to continue the chain. Regional and alternate forms can use different rules. Compare all evolution methods.

Evolves into

Maushold

level it up; reach level 25

View Maushold →

Complete installed learnset

Moves

77 entries

Level moves (14)

Lv. 1 · PoundLv. 1 · Baby-Doll EyesLv. 5 · Echoed VoiceLv. 8 · Helping HandLv. 11 · Super FangLv. 14 · Double HitLv. 18 · Bullet SeedLv. 22 · EncoreLv. 26 · Play RoughLv. 30 · Hyper VoiceLv. 33 · CharmLv. 37 · Beat UpLv. 41 · CopycatLv. 46 · Population Bomb

Egg moves (6)

After YouBaton PassBiteFeintSwitcherooTickle

Tm moves (41)

Aerial AceAfter YouAgilityBaby-Doll EyesBaton PassBeat UpBullet SeedCharmCrunchDigDouble-EdgeEchoed VoiceEncoreEndureFacadeFake TearsGrass KnotHelping HandHyper VoiceLow KickLow SweepMud ShotMud-SlapPlay RoughProtectRain DanceRestSeed BombShadow ClawSleep TalkSubstituteSunny DaySuper FangSwiftTake DownTauntTera BlastThiefThunder WaveU-turnWater Pulse

Tutor moves (15)

Aerial AceAfter YouBaby-Doll EyesHelping HandHyper VoiceLow KickMud-SlapPlay RoughRestSeed BombShadow ClawSleep TalkSuper FangSwiftWater Pulse

Special moves (1)

Celebrate

Useful extras

Drops & breeding

Wheat Seeds

Quantity 0-1

Chilan Berry

2.5% chance

Egg groups: Field, Fairy
Egg cycles: 10
Maximum drops: 2

Technical server dataRaw records, internal IDs, source files, presets, and full JSON

Source summary

Base species: Cobblemon-neoforge-1.7.3+1.21.1.jar. Installed additions: none.

Acquisition records

{
  "questGuides": [],
  "structureEncounters": [],
  "naturalSpawns": [
    {
      "id": "tandemaus-1",
      "pokemon": "tandemaus",
      "presets": [
        "natural",
        "wild"
      ],
      "type": "pokemon",
      "spawnablePositionType": "grounded",
      "bucket": "common",
      "level": "6-31",
      "weight": 1.8,
      "weightMultiplier": {
        "multiplier": 0.25,
        "condition": {
          "timeRange": "day"
        }
      },
      "condition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#cobblemon:is_temperate"
        ]
      },
      "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
      "sourceFile": "data/cobblemon/spawn_pool_world/0924_tandemaus.json",
      "formProperties": [],
      "presetConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "#cobblemon:natural"
            ]
          }
        }
      ],
      "presetAntiConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "minecraft:farmland"
            ]
          }
        },
        {
          "preset": "wild",
          "condition": {
            "structures": [
              "#minecraft:village"
            ],
            "neededNearbyBlocks": [
              "#cobblemon:concrete_blocks"
            ]
          }
        }
      ],
      "presetProvenance": [
        {
          "preset": "natural",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/natural.json"
        },
        {
          "preset": "wild",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/wild.json"
        }
      ],
      "effectiveCondition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#cobblemon:is_temperate"
        ],
        "neededBaseBlocks": [
          "#cobblemon:natural"
        ]
      },
      "effectiveAnticonditions": [
        {
          "neededBaseBlocks": [
            "minecraft:farmland"
          ]
        },
        {
          "structures": [
            "#minecraft:village"
          ],
          "neededNearbyBlocks": [
            "#cobblemon:concrete_blocks"
          ]
        }
      ],
      "resolvedBiomes": [
        "minecraft:forest",
        "minecraft:flower_forest",
        "minecraft:birch_forest",
        "minecraft:old_growth_birch_forest",
        "minecraft:dark_forest",
        "minecraft:grove",
        "ars_elemental:flashing_forest",
        "ars_elemental:blazing_forest",
        "ars_elemental:cascading_forest",
        "ars_elemental:flourishing_forest",
        "ars_elemental:vexing_caves",
        "ars_nouveau:archwood_forest",
        "terralith:birch_taiga",
        "terralith:blooming_valley",
        "terralith:cloud_forest",
        "terralith:lavender_forest",
        "terralith:lavender_valley",
        "terralith:moonlight_grove",
        "terralith:moonlight_valley",
        "terralith:sakura_grove",
        "terralith:sakura_valley",
        "terralith:snowy_cherry_grove",
        "terralith:temperate_highlands",
        "terralith:yosemite_lowlands",
        "minecraft:cherry_grove",
        "terralith:alpha_islands",
        "terralith:alpha_islands_winter",
        "terralith:forested_highlands",
        "terralith:mirage_isles",
        "legendarymonuments:dyna_plains",
        "minecraft:plains",
        "minecraft:sunflower_plains",
        "minecraft:meadow",
        "terralith:alpine_highlands",
        "terralith:arid_highlands",
        "terralith:blooming_plateau",
        "terralith:highlands",
        "terralith:brushland",
        "terralith:steppe",
        "terralith:shrubland",
        "terralith:valley_clearing"
      ],
      "resolvedExcludedBiomes": []
    },
    {
      "id": "tandemaus-2",
      "pokemon": "tandemaus",
      "presets": [
        "natural",
        "urban"
      ],
      "type": "pokemon",
      "spawnablePositionType": "grounded",
      "bucket": "common",
      "level": "6-31",
      "weight": 5.4,
      "weightMultiplier": {
        "multiplier": 0.25,
        "condition": {
          "timeRange": "day"
        }
      },
      "condition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#cobblemon:is_overworld"
        ]
      },
      "anticondition": {
        "biomes": [
          "#cobblemon:is_freezing",
          "#cobblemon:is_sandy"
        ]
      },
      "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
      "sourceFile": "data/cobblemon/spawn_pool_world/0924_tandemaus.json",
      "formProperties": [],
      "presetConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "#cobblemon:natural"
            ]
          }
        },
        {
          "preset": "urban",
          "condition": {
            "neededNearbyBlocks": [
              "#cobblemon:concrete_blocks"
            ]
          }
        }
      ],
      "presetAntiConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "minecraft:farmland"
            ]
          }
        },
        {
          "preset": "urban",
          "condition": {
            "structures": [
              "#minecraft:village",
              "minecraft:trail_ruins"
            ]
          }
        }
      ],
      "presetProvenance": [
        {
          "preset": "natural",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/natural.json"
        },
        {
          "preset": "urban",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/urban.json"
        }
      ],
      "effectiveCondition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#cobblemon:is_overworld"
        ],
        "neededBaseBlocks": [
          "#cobblemon:natural"
        ],
        "neededNearbyBlocks": [
          "#cobblemon:concrete_blocks"
        ]
      },
      "effectiveAnticonditions": [
        {
          "biomes": [
            "#cobblemon:is_freezing",
            "#cobblemon:is_sandy"
          ]
        },
        {
          "neededBaseBlocks": [
            "minecraft:farmland"
          ]
        },
        {
          "structures": [
            "#minecraft:village",
            "minecraft:trail_ruins"
          ]
        }
      ],
      "resolvedBiomes": [
        "minecraft:mushroom_fields",
        "minecraft:deep_cold_ocean",
        "minecraft:cold_ocean",
        "minecraft:deep_ocean",
        "minecraft:ocean",
        "minecraft:deep_lukewarm_ocean",
        "minecraft:lukewarm_ocean",
        "minecraft:warm_ocean",
        "minecraft:stony_shore",
        "minecraft:swamp",
        "minecraft:mangrove_swamp",
        "minecraft:windswept_gravelly_hills",
        "minecraft:windswept_hills",
        "minecraft:windswept_forest",
        "minecraft:taiga",
        "minecraft:plains",
        "minecraft:meadow",
        "minecraft:beach",
        "minecraft:forest",
        "minecraft:old_growth_spruce_taiga",
        "minecraft:flower_forest",
        "minecraft:birch_forest",
        "minecraft:dark_forest",
        "minecraft:savanna_plateau",
        "minecraft:savanna",
        "minecraft:jungle",
        "minecraft:stony_peaks",
        "minecraft:river",
        "minecraft:old_growth_pine_taiga",
        "minecraft:sunflower_plains",
        "minecraft:old_growth_birch_forest",
        "minecraft:sparse_jungle",
        "minecraft:bamboo_jungle",
        "minecraft:windswept_savanna",
        "minecraft:cherry_grove",
        "minecraft:dripstone_caves",
        "minecraft:lush_caves",
        "minecraft:deep_dark",
        "ars_elemental:flashing_forest",
        "ars_elemental:blazing_forest",
        "ars_elemental:cascading_forest",
        "ars_elemental:flourishing_forest",
        "ars_elemental:vexing_caves",
        "ars_nouveau:archwood_forest",
        "integrateddynamics:meneglin",
        "legendarymonuments:dyna_plains",
        "legendarymonuments:plains_of_death",
        "terralith:cave/andesite_caves",
        "terralith:cave/deep_caves",
        "terralith:cave/diorite_caves",
        "terralith:cave/fungal_caves",
        "terralith:cave/granite_caves",
        "terralith:cave/infested_caves",
        "terralith:cave/mantle_caves",
        "terralith:cave/thermal_caves",
        "terralith:cave/tuff_caves",
        "terralith:cave/underground_jungle",
        "terralith:alpha_islands",
        "terralith:alpine_highlands",
        "terralith:amethyst_canyon",
        "terralith:amethyst_rainforest",
        "terralith:arid_highlands",
        "terralith:basalt_cliffs",
        "terralith:birch_taiga",
        "terralith:blooming_plateau",
        "terralith:blooming_valley",
        "terralith:brushland",
        "terralith:caldera",
        "terralith:cloud_forest",
        "terralith:forested_highlands",
        "terralith:fractured_savanna",
        "terralith:granite_cliffs",
        "terralith:gravel_beach",
        "terralith:haze_mountain",
        "terralith:highlands",
        "terralith:hot_shrubland",
        "terralith:jungle_mountains",
        "terralith:lavender_forest",
        "terralith:lavender_valley",
        "terralith:lush_valley",
        "terralith:mirage_isles",
        "terralith:moonlight_grove",
        "terralith:moonlight_valley",
        "terralith:orchid_swamp",
        "terralith:rocky_jungle",
        "terralith:sakura_grove",
        "terralith:sakura_valley",
        "terralith:savanna_slopes",
        "terralith:shield",
        "terralith:shield_clearing",
        "terralith:shrubland",
        "terralith:steppe",
        "terralith:stony_spires",
        "terralith:temperate_highlands",
        "terralith:tropical_jungle",
        "terralith:valley_clearing",
        "terralith:volcanic_crater",
        "terralith:volcanic_peaks",
        "terralith:warm_river",
        "terralith:white_cliffs",
        "terralith:windswept_spires",
        "terralith:yellowstone",
        "terralith:yosemite_cliffs",
        "terralith:yosemite_lowlands"
      ],
      "resolvedExcludedBiomes": [
        "minecraft:frozen_river",
        "minecraft:jagged_peaks",
        "minecraft:snowy_beach",
        "minecraft:snowy_plains",
        "minecraft:snowy_slopes",
        "minecraft:deep_frozen_ocean",
        "minecraft:frozen_ocean",
        "terralith:frozen_cliffs",
        "minecraft:frozen_peaks",
        "minecraft:ice_spikes",
        "terralith:alpine_grove",
        "terralith:cold_shrubland",
        "terralith:emerald_peaks",
        "terralith:rocky_shrubland",
        "terralith:scarlet_mountains",
        "terralith:siberian_grove",
        "terralith:siberian_taiga",
        "terralith:snowy_badlands",
        "terralith:snowy_cherry_grove",
        "terralith:snowy_maple_forest",
        "terralith:snowy_shield",
        "terralith:wintry_forest",
        "terralith:wintry_lowlands",
        "terralith:glacial_chasm",
        "terralith:gravel_desert",
        "terralith:ice_marsh",
        "terralith:cave/frostfire_caves",
        "terralith:alpha_islands_winter",
        "minecraft:grove",
        "minecraft:snowy_taiga",
        "terralith:rocky_mountains",
        "terralith:skylands_winter",
        "minecraft:badlands",
        "minecraft:eroded_badlands",
        "minecraft:wooded_badlands",
        "terralith:bryce_canyon",
        "terralith:painted_mountains",
        "terralith:red_oasis",
        "terralith:savanna_badlands",
        "terralith:white_mesa",
        "terralith:ashen_savanna",
        "terralith:warped_mesa",
        "minecraft:desert",
        "terralith:desert_oasis",
        "terralith:desert_spires",
        "terralith:lush_desert",
        "terralith:sandstone_valley",
        "terralith:ancient_sands",
        "terralith:desert_canyon",
        "terralith:cave/desert_caves"
      ]
    },
    {
      "id": "tandemaus-3",
      "pokemon": "tandemaus",
      "presets": [
        "natural"
      ],
      "type": "pokemon",
      "spawnablePositionType": "grounded",
      "bucket": "common",
      "level": "6-31",
      "weight": 5.4,
      "weightMultiplier": {
        "multiplier": 0.25,
        "condition": {
          "timeRange": "day"
        }
      },
      "condition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#cobblemon:is_overworld"
        ],
        "structures": [
          "#minecraft:village"
        ]
      },
      "anticondition": {
        "biomes": [
          "#cobblemon:is_freezing",
          "#cobblemon:is_sandy"
        ]
      },
      "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
      "sourceFile": "data/cobblemon/spawn_pool_world/0924_tandemaus.json",
      "formProperties": [],
      "presetConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "#cobblemon:natural"
            ]
          }
        }
      ],
      "presetAntiConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "minecraft:farmland"
            ]
          }
        }
      ],
      "presetProvenance": [
        {
          "preset": "natural",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/natural.json"
        }
      ],
      "effectiveCondition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#cobblemon:is_overworld"
        ],
        "structures": [
          "#minecraft:village"
        ],
        "neededBaseBlocks": [
          "#cobblemon:natural"
        ]
      },
      "effectiveAnticonditions": [
        {
          "biomes": [
            "#cobblemon:is_freezing",
            "#cobblemon:is_sandy"
          ]
        },
        {
          "neededBaseBlocks": [
            "minecraft:farmland"
          ]
        }
      ],
      "resolvedBiomes": [
        "minecraft:mushroom_fields",
        "minecraft:deep_cold_ocean",
        "minecraft:cold_ocean",
        "minecraft:deep_ocean",
        "minecraft:ocean",
        "minecraft:deep_lukewarm_ocean",
        "minecraft:lukewarm_ocean",
        "minecraft:warm_ocean",
        "minecraft:stony_shore",
        "minecraft:swamp",
        "minecraft:mangrove_swamp",
        "minecraft:windswept_gravelly_hills",
        "minecraft:windswept_hills",
        "minecraft:windswept_forest",
        "minecraft:taiga",
        "minecraft:plains",
        "minecraft:meadow",
        "minecraft:beach",
        "minecraft:forest",
        "minecraft:old_growth_spruce_taiga",
        "minecraft:flower_forest",
        "minecraft:birch_forest",
        "minecraft:dark_forest",
        "minecraft:savanna_plateau",
        "minecraft:savanna",
        "minecraft:jungle",
        "minecraft:stony_peaks",
        "minecraft:river",
        "minecraft:old_growth_pine_taiga",
        "minecraft:sunflower_plains",
        "minecraft:old_growth_birch_forest",
        "minecraft:sparse_jungle",
        "minecraft:bamboo_jungle",
        "minecraft:windswept_savanna",
        "minecraft:cherry_grove",
        "minecraft:dripstone_caves",
        "minecraft:lush_caves",
        "minecraft:deep_dark",
        "ars_elemental:flashing_forest",
        "ars_elemental:blazing_forest",
        "ars_elemental:cascading_forest",
        "ars_elemental:flourishing_forest",
        "ars_elemental:vexing_caves",
        "ars_nouveau:archwood_forest",
        "integrateddynamics:meneglin",
        "legendarymonuments:dyna_plains",
        "legendarymonuments:plains_of_death",
        "terralith:cave/andesite_caves",
        "terralith:cave/deep_caves",
        "terralith:cave/diorite_caves",
        "terralith:cave/fungal_caves",
        "terralith:cave/granite_caves",
        "terralith:cave/infested_caves",
        "terralith:cave/mantle_caves",
        "terralith:cave/thermal_caves",
        "terralith:cave/tuff_caves",
        "terralith:cave/underground_jungle",
        "terralith:alpha_islands",
        "terralith:alpine_highlands",
        "terralith:amethyst_canyon",
        "terralith:amethyst_rainforest",
        "terralith:arid_highlands",
        "terralith:basalt_cliffs",
        "terralith:birch_taiga",
        "terralith:blooming_plateau",
        "terralith:blooming_valley",
        "terralith:brushland",
        "terralith:caldera",
        "terralith:cloud_forest",
        "terralith:forested_highlands",
        "terralith:fractured_savanna",
        "terralith:granite_cliffs",
        "terralith:gravel_beach",
        "terralith:haze_mountain",
        "terralith:highlands",
        "terralith:hot_shrubland",
        "terralith:jungle_mountains",
        "terralith:lavender_forest",
        "terralith:lavender_valley",
        "terralith:lush_valley",
        "terralith:mirage_isles",
        "terralith:moonlight_grove",
        "terralith:moonlight_valley",
        "terralith:orchid_swamp",
        "terralith:rocky_jungle",
        "terralith:sakura_grove",
        "terralith:sakura_valley",
        "terralith:savanna_slopes",
        "terralith:shield",
        "terralith:shield_clearing",
        "terralith:shrubland",
        "terralith:steppe",
        "terralith:stony_spires",
        "terralith:temperate_highlands",
        "terralith:tropical_jungle",
        "terralith:valley_clearing",
        "terralith:volcanic_crater",
        "terralith:volcanic_peaks",
        "terralith:warm_river",
        "terralith:white_cliffs",
        "terralith:windswept_spires",
        "terralith:yellowstone",
        "terralith:yosemite_cliffs",
        "terralith:yosemite_lowlands"
      ],
      "resolvedExcludedBiomes": [
        "minecraft:frozen_river",
        "minecraft:jagged_peaks",
        "minecraft:snowy_beach",
        "minecraft:snowy_plains",
        "minecraft:snowy_slopes",
        "minecraft:deep_frozen_ocean",
        "minecraft:frozen_ocean",
        "terralith:frozen_cliffs",
        "minecraft:frozen_peaks",
        "minecraft:ice_spikes",
        "terralith:alpine_grove",
        "terralith:cold_shrubland",
        "terralith:emerald_peaks",
        "terralith:rocky_shrubland",
        "terralith:scarlet_mountains",
        "terralith:siberian_grove",
        "terralith:siberian_taiga",
        "terralith:snowy_badlands",
        "terralith:snowy_cherry_grove",
        "terralith:snowy_maple_forest",
        "terralith:snowy_shield",
        "terralith:wintry_forest",
        "terralith:wintry_lowlands",
        "terralith:glacial_chasm",
        "terralith:gravel_desert",
        "terralith:ice_marsh",
        "terralith:cave/frostfire_caves",
        "terralith:alpha_islands_winter",
        "minecraft:grove",
        "minecraft:snowy_taiga",
        "terralith:rocky_mountains",
        "terralith:skylands_winter",
        "minecraft:badlands",
        "minecraft:eroded_badlands",
        "minecraft:wooded_badlands",
        "terralith:bryce_canyon",
        "terralith:painted_mountains",
        "terralith:red_oasis",
        "terralith:savanna_badlands",
        "terralith:white_mesa",
        "terralith:ashen_savanna",
        "terralith:warped_mesa",
        "minecraft:desert",
        "terralith:desert_oasis",
        "terralith:desert_spires",
        "terralith:lush_desert",
        "terralith:sandstone_valley",
        "terralith:ancient_sands",
        "terralith:desert_canyon",
        "terralith:cave/desert_caves"
      ]
    },
    {
      "id": "tandemaus-4",
      "pokemon": "tandemaus",
      "presets": [
        "mansion"
      ],
      "type": "pokemon",
      "spawnablePositionType": "grounded",
      "bucket": "common",
      "level": "6-31",
      "weight": 9,
      "condition": {
        "canSeeSky": false,
        "biomes": [
          "#cobblemon:is_overworld"
        ]
      },
      "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
      "sourceFile": "data/cobblemon/spawn_pool_world/0924_tandemaus.json",
      "formProperties": [],
      "presetConditions": [
        {
          "preset": "mansion",
          "condition": {
            "structures": [
              "minecraft:mansion",
              "minecraft:woodland_mansion"
            ],
            "minY": 62,
            "neededBaseBlocks": [
              "minecraft:birch_planks",
              "minecraft:double_smooth_stone_slab",
              "minecraft:oak_planks",
              "minecraft:polished_andesite",
              "#minecraft:wool",
              "#minecraft:wool_carpets"
            ],
            "neededNearbyBlocks": [
              "#cobblemon:mansion_blocks"
            ]
          }
        }
      ],
      "presetAntiConditions": [],
      "presetProvenance": [
        {
          "preset": "mansion",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/mansion.json"
        }
      ],
      "effectiveCondition": {
        "canSeeSky": false,
        "biomes": [
          "#cobblemon:is_overworld"
        ],
        "structures": [
          "minecraft:mansion",
          "minecraft:woodland_mansion"
        ],
        "minY": 62,
        "neededBaseBlocks": [
          "minecraft:birch_planks",
          "minecraft:double_smooth_stone_slab",
          "minecraft:oak_planks",
          "minecraft:polished_andesite",
          "#minecraft:wool",
          "#minecraft:wool_carpets"
        ],
        "neededNearbyBlocks": [
          "#cobblemon:mansion_blocks"
        ]
      },
      "effectiveAnticonditions": [],
      "resolvedBiomes": [
        "minecraft:mushroom_fields",
        "minecraft:deep_frozen_ocean",
        "minecraft:frozen_ocean",
        "minecraft:deep_cold_ocean",
        "minecraft:cold_ocean",
        "minecraft:deep_ocean",
        "minecraft:ocean",
        "minecraft:deep_lukewarm_ocean",
        "minecraft:lukewarm_ocean",
        "minecraft:warm_ocean",
        "minecraft:stony_shore",
        "minecraft:swamp",
        "minecraft:mangrove_swamp",
        "minecraft:snowy_slopes",
        "minecraft:snowy_plains",
        "minecraft:snowy_beach",
        "minecraft:windswept_gravelly_hills",
        "minecraft:grove",
        "minecraft:windswept_hills",
        "minecraft:snowy_taiga",
        "minecraft:windswept_forest",
        "minecraft:taiga",
        "minecraft:plains",
        "minecraft:meadow",
        "minecraft:beach",
        "minecraft:forest",
        "minecraft:old_growth_spruce_taiga",
        "minecraft:flower_forest",
        "minecraft:birch_forest",
        "minecraft:dark_forest",
        "minecraft:savanna_plateau",
        "minecraft:savanna",
        "minecraft:jungle",
        "minecraft:badlands",
        "minecraft:desert",
        "minecraft:wooded_badlands",
        "minecraft:jagged_peaks",
        "minecraft:stony_peaks",
        "minecraft:frozen_river",
        "minecraft:river",
        "minecraft:ice_spikes",
        "minecraft:old_growth_pine_taiga",
        "minecraft:sunflower_plains",
        "minecraft:old_growth_birch_forest",
        "minecraft:sparse_jungle",
        "minecraft:bamboo_jungle",
        "minecraft:eroded_badlands",
        "minecraft:windswept_savanna",
        "minecraft:cherry_grove",
        "minecraft:frozen_peaks",
        "minecraft:dripstone_caves",
        "minecraft:lush_caves",
        "minecraft:deep_dark",
        "ars_elemental:flashing_forest",
        "ars_elemental:blazing_forest",
        "ars_elemental:cascading_forest",
        "ars_elemental:flourishing_forest",
        "ars_elemental:vexing_caves",
        "ars_nouveau:archwood_forest",
        "integrateddynamics:meneglin",
        "legendarymonuments:dyna_plains",
        "legendarymonuments:plains_of_death",
        "terralith:cave/andesite_caves",
        "terralith:cave/deep_caves",
        "terralith:cave/diorite_caves",
        "terralith:cave/fungal_caves",
        "terralith:cave/granite_caves",
        "terralith:cave/infested_caves",
        "terralith:cave/mantle_caves",
        "terralith:cave/thermal_caves",
        "terralith:cave/tuff_caves",
        "terralith:cave/underground_jungle",
        "terralith:alpha_islands",
        "terralith:alpha_islands_winter",
        "terralith:alpine_grove",
        "terralith:alpine_highlands",
        "terralith:amethyst_canyon",
        "terralith:amethyst_rainforest",
        "terralith:ancient_sands",
        "terralith:arid_highlands",
        "terralith:ashen_savanna",
        "terralith:basalt_cliffs",
        "terralith:birch_taiga",
        "terralith:blooming_plateau",
        "terralith:blooming_valley",
        "terralith:brushland",
        "terralith:bryce_canyon",
        "terralith:caldera",
        "terralith:cloud_forest",
        "terralith:cold_shrubland",
        "terralith:desert_canyon",
        "terralith:desert_oasis",
        "terralith:desert_spires",
        "terralith:emerald_peaks",
        "terralith:forested_highlands",
        "terralith:fractured_savanna",
        "terralith:frozen_cliffs",
        "terralith:glacial_chasm",
        "terralith:granite_cliffs",
        "terralith:gravel_beach",
        "terralith:gravel_desert",
        "terralith:haze_mountain",
        "terralith:highlands",
        "terralith:hot_shrubland",
        "terralith:ice_marsh",
        "terralith:jungle_mountains",
        "terralith:lavender_forest",
        "terralith:lavender_valley",
        "terralith:lush_desert",
        "terralith:lush_valley",
        "terralith:mirage_isles",
        "terralith:moonlight_grove",
        "terralith:moonlight_valley",
        "terralith:orchid_swamp",
        "terralith:painted_mountains",
        "terralith:red_oasis",
        "terralith:rocky_jungle",
        "terralith:rocky_mountains",
        "terralith:rocky_shrubland",
        "terralith:sakura_grove",
        "terralith:sakura_valley",
        "terralith:sandstone_valley",
        "terralith:savanna_badlands",
        "terralith:savanna_slopes",
        "terralith:scarlet_mountains",
        "terralith:shield",
        "terralith:shield_clearing",
        "terralith:shrubland",
        "terralith:siberian_grove",
        "terralith:siberian_taiga",
        "terralith:snowy_badlands",
        "terralith:snowy_cherry_grove",
        "terralith:snowy_maple_forest",
        "terralith:snowy_shield",
        "terralith:steppe",
        "terralith:stony_spires",
        "terralith:temperate_highlands",
        "terralith:tropical_jungle",
        "terralith:valley_clearing",
        "terralith:volcanic_crater",
        "terralith:volcanic_peaks",
        "terralith:warm_river",
        "terralith:warped_mesa",
        "terralith:white_cliffs",
        "terralith:white_mesa",
        "terralith:windswept_spires",
        "terralith:wintry_forest",
        "terralith:wintry_lowlands",
        "terralith:yellowstone",
        "terralith:yosemite_cliffs",
        "terralith:yosemite_lowlands",
        "terralith:cave/frostfire_caves"
      ],
      "resolvedExcludedBiomes": []
    },
    {
      "id": "tandemaus-5",
      "pokemon": "tandemaus",
      "presets": [
        "natural"
      ],
      "type": "pokemon",
      "spawnablePositionType": "grounded",
      "bucket": "common",
      "level": "6-31",
      "weight": 1.8,
      "condition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#aether:is_aether"
        ]
      },
      "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
      "sourceFile": "data/cobblemon/spawn_pool_world/0924_tandemaus.json",
      "formProperties": [],
      "presetConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "#cobblemon:natural"
            ]
          }
        }
      ],
      "presetAntiConditions": [
        {
          "preset": "natural",
          "condition": {
            "neededBaseBlocks": [
              "minecraft:farmland"
            ]
          }
        }
      ],
      "presetProvenance": [
        {
          "preset": "natural",
          "source": "Cobblemon-neoforge-1.7.3+1.21.1.jar",
          "sourceFile": "data/cobblemon/spawn_detail_presets/natural.json"
        }
      ],
      "effectiveCondition": {
        "minSkyLight": 8,
        "maxSkyLight": 15,
        "biomes": [
          "#aether:is_aether"
        ],
        "neededBaseBlocks": [
          "#cobblemon:natural"
        ]
      },
      "effectiveAnticonditions": [
        {
          "neededBaseBlocks": [
            "minecraft:farmland"
          ]
        }
      ],
      "resolvedBiomes": [
        "aether:skyroot_meadow",
        "aether:skyroot_grove",
        "aether:skyroot_woodland",
        "aether:skyroot_forest"
      ],
      "resolvedExcludedBiomes": []
    }
  ],
  "raids": [
    {
      "tier": "TWO",
      "type": "normal",
      "weight": 20,
      "moves": [
        "bulletseed",
        "doublehit",
        "echoedvoice",
        "pound"
      ],
      "source": "cobblemonraiddens-neoforge-0.11.7+1.21.1.jar",
      "sourceFile": "data/cobblemonraiddens/raid/boss/tandemaus.json",
      "formProperties": [],
      "gender": null,
      "ability": null,
      "bossProperties": []
    }
  ],
  "fossils": []
}

Evolution and forms

{
  "evolutions": [
    {
      "id": "tandemaus_maushold",
      "variant": "level_up",
      "result": "maushold",
      "consumeHeldItem": false,
      "learnableMoves": [],
      "requirements": [
        {
          "variant": "level",
          "minLevel": 25
        }
      ]
    }
  ],
  "forms": []
}

Behavior and drops

{
  "behaviour": {
    "herd": {
      "maxSize": "9",
      "toleratedLeaders": [
        {
          "pokemon": "tandemaus",
          "tier": 1
        },
        {
          "pokemon": "maushold",
          "tier": 2
        }
      ]
    },
    "resting": {
      "willSleepOnBed": true,
      "drowsyChance": 0.0333,
      "rouseChance": 0.0042
    },
    "moving": {
      "swim": {
        "avoidsWater": true
      }
    },
    "combat": {
      "willDefendOwner": true
    }
  },
  "drops": {
    "amount": 2,
    "entries": [
      {
        "item": "minecraft:wheat_seeds",
        "quantityRange": "0-1"
      },
      {
        "item": "cobblemon:chilan_berry",
        "percentage": 2.5
      }
    ]
  },
  "labels": [
    "gen9"
  ]
}

Complete installed species record

{
  "implemented": true,
  "nationalPokedexNumber": 924,
  "name": "Tandemaus",
  "primaryType": "normal",
  "maleRatio": -1,
  "height": 3,
  "weight": 18,
  "pokedex": [
    "cobblemon.species.tandemaus.desc"
  ],
  "labels": [
    "gen9"
  ],
  "aspects": [],
  "abilities": [
    "runaway",
    "pickup",
    "h:owntempo"
  ],
  "eggGroups": [
    "field",
    "fairy"
  ],
  "baseStats": {
    "hp": 50,
    "attack": 50,
    "defence": 45,
    "special_attack": 40,
    "special_defence": 45,
    "speed": 75
  },
  "evYield": {
    "hp": 0,
    "attack": 0,
    "defence": 0,
    "special_attack": 0,
    "special_defence": 0,
    "speed": 1
  },
  "baseExperienceYield": 61,
  "experienceGroup": "fast",
  "catchRate": 150,
  "eggCycles": 10,
  "baseFriendship": 50,
  "baseScale": 0.5,
  "hitbox": {
    "width": 1.25,
    "height": 0.75,
    "fixed": false
  },
  "drops": {
    "amount": 2,
    "entries": [
      {
        "item": "minecraft:wheat_seeds",
        "quantityRange": "0-1"
      },
      {
        "item": "cobblemon:chilan_berry",
        "percentage": 2.5
      }
    ]
  },
  "moves": [
    "1:pound",
    "1:babydolleyes",
    "5:echoedvoice",
    "8:helpinghand",
    "11:superfang",
    "14:doublehit",
    "18:bulletseed",
    "22:encore",
    "26:playrough",
    "30:hypervoice",
    "33:charm",
    "37:beatup",
    "41:copycat",
    "46:populationbomb",
    "egg:afteryou",
    "egg:batonpass",
    "egg:bite",
    "egg:feint",
    "egg:switcheroo",
    "egg:tickle",
    "tm:aerialace",
    "tm:afteryou",
    "tm:agility",
    "tm:babydolleyes",
    "tm:batonpass",
    "tm:beatup",
    "tm:bulletseed",
    "tm:charm",
    "tm:crunch",
    "tm:dig",
    "tm:doubleedge",
    "tm:echoedvoice",
    "tm:encore",
    "tm:endure",
    "tm:facade",
    "tm:faketears",
    "tm:grassknot",
    "tm:helpinghand",
    "tm:hypervoice",
    "tm:lowkick",
    "tm:lowsweep",
    "tm:mudshot",
    "tm:mudslap",
    "tm:playrough",
    "tm:protect",
    "tm:raindance",
    "tm:rest",
    "tm:seedbomb",
    "tm:shadowclaw",
    "tm:sleeptalk",
    "tm:substitute",
    "tm:sunnyday",
    "tm:superfang",
    "tm:swift",
    "tm:takedown",
    "tm:taunt",
    "tm:terablast",
    "tm:thief",
    "tm:thunderwave",
    "tm:uturn",
    "tm:waterpulse",
    "tutor:aerialace",
    "tutor:afteryou",
    "tutor:babydolleyes",
    "tutor:helpinghand",
    "tutor:hypervoice",
    "tutor:lowkick",
    "tutor:mudslap",
    "tutor:playrough",
    "tutor:rest",
    "tutor:seedbomb",
    "tutor:shadowclaw",
    "tutor:sleeptalk",
    "tutor:superfang",
    "tutor:swift",
    "tutor:waterpulse",
    "special:celebrate"
  ],
  "evolutions": [
    {
      "id": "tandemaus_maushold",
      "variant": "level_up",
      "result": "maushold",
      "consumeHeldItem": false,
      "learnableMoves": [],
      "requirements": [
        {
          "variant": "level",
          "minLevel": 25
        }
      ]
    }
  ],
  "behaviour": {
    "herd": {
      "maxSize": "9",
      "toleratedLeaders": [
        {
          "pokemon": "tandemaus",
          "tier": 1
        },
        {
          "pokemon": "maushold",
          "tier": 2
        }
      ]
    },
    "resting": {
      "willSleepOnBed": true,
      "drowsyChance": 0.0333,
      "rouseChance": 0.0042
    },
    "moving": {
      "swim": {
        "avoidsWater": true
      }
    },
    "combat": {
      "willDefendOwner": true
    }
  }
}