Gastrodon
Sun

It has strong regenerative capabilities. Even if parts of it are bitten off by fish Pokémon, it will return to normal within a few hours.

Moon

Plankton, invisible to the naked eye, is its main food source. It comes onto the land periodically, but the reason for this is not known.

Ultra Sun

Long ago, it had a shell on its back. There’s now a vestigial plate on its back that’s hard but thin.

Ultra Moon

Their shape and color change, depending on their environment and diet. There are many of them at beaches where the waves are calm.

Evolution Chain

shellos
Shellos
Level 30
gastrodon
Gastrodon

Pokédex & Training Data

Classification Sea Slug Pokémon
Height 0.9 m (2'11")
Weight 29.9 kg (65.9 lbs)
Abilities
EV Yield +2 hp
Catch Rate 75
Base Friendship 70
Growth Rate medium
Gender Ratio
♂ ♀
Egg Groups Water1, Indeterminate

Pokédex Numbers

Sinnoh (D/P) #061
Sinnoh (Plat.) #061
Alola (S/M) #261
Alola (US/UM) #342
Galar (Sw/Sh) #231
Hisui #083
Paldea (S/V) #328
National #423

Game Locations

Ancient Poni Path Area
Exeggutor Island Area
Poni Breaker Coast Area
Poni Wilds Area

Learned Moves

Level Up Moves

Sun/Moon
Lvl Name Class Power Acc. PP Effect
1 Harden
— — 30 Raises the user’s Defense by one stage.
1 Mud Slap
20 100% 10 Has a 100% chance to lower the target’s accuracy by one stage.
1 Mud Sport
— — 15 Halves all Electric-type damage.
1 Water Pulse
60 100% 20 Has a 20% chance to confuse the target.
2 Mud Sport
— — 15 Halves all Electric-type damage.
4 Harden
— — 30 Raises the user’s Defense by one stage.
7 Water Pulse
60 100% 20 Has a 20% chance to confuse the target.
11 Mud Bomb
65 85% 10 Has a 30% chance to lower the target’s accuracy by one stage.
16 Hidden Power
60 100% 15 Power and type depend upon user’s IVs. Power can range from 30 to 70.
22 Rain Dance
— — 5 Changes the weather to rain for five turns.
29 Body Slam
85 100% 15 Has a 30% chance to paralyze the target.
41 Muddy Water
90 85% 10 Has a 30% chance to lower the target’s accuracy by one stage.
54 Recover
— — 5 Heals the user by half its max HP.
Ultra Sun/Ultra Moon
Lvl Name Class Power Acc. PP Effect
1 Harden
— — 30 Raises the user’s Defense by one stage.
1 Mud Slap
20 100% 10 Has a 100% chance to lower the target’s accuracy by one stage.
1 Mud Sport
— — 15 Halves all Electric-type damage.
1 Water Pulse
60 100% 20 Has a 20% chance to confuse the target.
2 Mud Sport
— — 15 Halves all Electric-type damage.
4 Harden
— — 30 Raises the user’s Defense by one stage.
7 Water Pulse
60 100% 20 Has a 20% chance to confuse the target.
11 Mud Bomb
65 85% 10 Has a 30% chance to lower the target’s accuracy by one stage.
16 Hidden Power
60 100% 15 Power and type depend upon user’s IVs. Power can range from 30 to 70.
22 Rain Dance
— — 5 Changes the weather to rain for five turns.
29 Body Slam
85 100% 15 Has a 30% chance to paralyze the target.
41 Muddy Water
90 85% 10 Has a 30% chance to lower the target’s accuracy by one stage.
54 Recover
— — 5 Heals the user by half its max HP.

TM/HM Moves

Sun/MoonUltra Sun/Ultra Moon
Name Class Power Acc. PP Effect
TM06 Toxic
— 90% 10 Badly poisons the target, inflicting more damage every turn.
TM07 Hail
— — 10 Changes the weather to a hailstorm for five turns.
TM10 Hidden Power
60 100% 15 Power and type depend upon user’s IVs. Power can range from 30 to 70.
TM13 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
TM14 Blizzard
110 70% 5 Has a 10% chance to freeze the target.
TM15 Hyper Beam
150 90% 5 User foregoes its next turn to recharge.
TM17 Protect
— — 10 Prevents any moves from hitting the user this turn.
TM18 Rain Dance
— — 5 Changes the weather to rain for five turns.
TM21 Frustration
— 100% 20 Power increases as happiness decreases, up to a maximum of 102.
TM26 Earthquake
100 100% 10 Inflicts regular damage and can hit Dig users.
TM27 Return
— 100% 20 Power increases with happiness, up to a maximum of 102.
TM32 Double Team
— — 15 Raises the user’s evasion by one stage.
TM34 Sludge Wave
95 100% 10 Has a 10% chance to poison the target.
TM36 Sludge Bomb
90 100% 10 Has a 30% chance to poison the target.
TM37 Sandstorm
— — 10 Changes the weather to a sandstorm for five turns.
TM39 Rock Tomb
60 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
TM42 Facade
70 100% 20 Power doubles if user is burned, paralyzed, or poisoned.
TM44 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM45 Attract
— 100% 15 Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
TM48 Round
60 100% 15 Has double power if it’s used more than once per turn.
TM55 Scald
80 100% 15 Has a 30% chance to burn the target.
TM68 Giga Impact
150 90% 5 User foregoes its next turn to recharge.
TM71 Stone Edge
100 80% 5 Has an increased chance for a critical hit.
TM78 Bulldoze
60 100% 20 Has a 100% chance to lower the target’s Speed by one stage.
TM80 Rock Slide
75 90% 10 Has a 30% chance to make the target flinch.
TM83 Infestation
20 100% 20 Prevents the target from fleeing and inflicts damage for 2-5 turns.
TM87 Swagger
— 85% 15 Raises the target’s Attack by two stages and confuses the target.
TM88 Sleep Talk
— — 10 Randomly uses one of the user’s other three moves. Only works if the user is sleeping.
TM90 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.
TM94 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.
TM98 Waterfall
80 100% 15 Has a 20% chance to make the target flinch.
TM100 Confide
— — 20 Lowers the target’s Special Attack by one stage.

Tutor Moves

Ultra Sun/Ultra Moon
Name Class Power Acc. PP Effect
Block
— — 5 Prevents the target from leaving battle.
Earth Power
90 100% 10 Has a 10% chance to lower the target’s Special Defense by one stage.
Icy Wind
55 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
Pain Split
— — 20 Sets the user’s and targets’s HP to the average of their current HP.
Snore
50 100% 15 Has a 30% chance to make the target flinch. Only works if the user is sleeping.
Stomping Tantrum
75 100% 10 Has double power if the user’s last move failed.
Water Pulse
60 100% 20 Has a 20% chance to confuse the target.

Base Stats

Hp 111
Attack 83
Defense 68
Sp. Atk 92
Sp. Def 82
Speed 39
Total 475

Type Defenses

(vs. Gen 6+ rules)

0.5x
4x
0x
0.5x
0.5x
0.5x