Essentials

Gastrodon

The Sea Slug Pokémon

West Gastrodon

Water Ground

Abilities

Sticky Hold

Prevents a held item from being removed by other Pokémon.

Storm Drain

Redirects single-target Water moves to this Pokémon where possible. Absorbs Water moves, raising Special Attack one stage.

Hidden Ability

Sand Force

Strengthens Rock, Ground, and Steel moves to 1.3× their power during a sandstorm. Protects against sandstorm damage.

Damage Taken

  • Bug 1
  • Dark 1
  • Dragon 1
  • Electric 0
  • Fairy 1
  • Fighting 1
  • Fire ½
  • Flying 1
  • Ghost 1
  • Grass 4
  • Ground 1
  • Ice 1
  • Normal 1
  • Poison ½
  • Psychic 1
  • Rock ½
  • Steel ½
  • Water 1

Pokédex Numbers

Introduced in
Generation 4
National
423
Original Sinnoh
61 Diamond, Pearl
Extended Sinnoh
61 Platinum

Names

Japanese
トリトドン (toritodon)
Official roomaji
Toritodon
Korean
트리토돈
Chinese
海牛獸
French
Tritosor
German
Gastrodon
Spanish
Gastrodon
Italian
Gastrodon

Breeding

Gender
½ male, ½ female Search:
Egg groups
  • Water 1
  • Amorphous
Search:
Hatch counter
20 Search:
Steps to hatch
5355 / 2805

Compatibility

Training

Base EXP
166 Search:
Effort points
  • 2 HP
Capture rate
75 Search:
Base happiness
70 Search:
Growth rate
medium Search:

Wild held items

Generation 4 nothing
Generation 5 nothing
Generation 6 nothing

Evolution

Baby Basic Stage 1 Stage 2
Shellos Gastrodon Level up, starting at level 30

Gastrodon Forms

  • West Gastrodon
  • East Gastrodon

Forms only affect appearance. A form is determined before a wild encounter based on whether the battle is in western or eastern Sinnoh and cannot be changed.

Stats

Pctile Min IVs Max IVs
HP
111
95.9 395 426
Attack
83
60.1 234 265
Defense
68
48.5 204 235
Special Attack
92
74.6 252 283
Special Defense
82
69.8 232 263
Speed
39
15.6 146 177
Total
475
59.5

HeartGold, SoulSilver Pokéathlon Performance

★ Minimum; ✯ Base; ☆ Maximum

Speed
★☆
Power
★★★✯☆
Skill
★✯✯
Stamina
★★★★✯
Jump
★★
Total
11/15/17

Flavor

Flavor Text

Generation 5
Black, White, Black 2, White 2

Long ago, its entire back was shielded with a sturdy shell. There are traces of it left in its cells.

Generation 6
X

When its natural enemy attacks, it oozes purple fluid and escapes.

Y

It apparently had a huge shell for protection in ancient times. It lives in shallow tidal pools.

Sprites

West Gastrodon West Gastrodon West Gastrodon West Gastrodon

Miscellany

Species
Sea Slug Search:
Color
Purple Search:
Cry
Footprint
Gastrodon
Shape
Chitinous Search:

Height

Trainer dude

West Gastrodon
9

2'11.4"
0.9 m

Weight

Trainer dudette

West Gastrodon
299

65.9 lb
29.9 kg

Locations

Diamond Diamond
Pearl Pearl
Platinum Platinum

Pal Park

Area
Sea
Score
70
Rate
20

Moves

Water and Ground moves get STAB, and have their type highlighted in green.

Special moves better suit Gastrodon's higher Special Attack, and have their class highlighted in green.

Diamond, Pearl
Platinum
HeartGold, SoulSilver Generation 5 Generation 6 Move Type Class PP Power Acc Pri Effect
Level up: Learned when a Pokémon reaches a certain level.
Mud-Slap Ground special 10 20 100%

Has a 100% chance to lower the target's accuracy by one stage.

Mud Sport Ground status 15

Halves all Electric-type damage.

Harden Normal status 30

Raises the user's Defense by one stage.

Water Pulse Water special 20 60 100%

Has a 20% chance to confuse the target.

2 2 2 2 Mud Sport Ground status 15

Halves all Electric-type damage.

4 4 4 4 Harden Normal status 30

Raises the user's Defense by one stage.

7 7 7 7 Water Pulse Water special 20 60 100%

Has a 20% chance to confuse the target.

11 11 11 11 Mud Bomb Ground special 10 65 85%

Has a 30% chance to lower the target's accuracy by one stage.

16 16 16 16 Hidden Power Normal special 15 60 100%

Power and type depend upon user's IVs. Power can range from 30 to 70.

22 22 22 22 Rain Dance Water status 5

Changes the weather to rain for five turns.

29 29 29 29 Body Slam Normal physical 15 85 100%

Has a 30% chance to paralyze the target.

41 41 41 41 Muddy Water Water special 10 90 85%

Has a 30% chance to lower the target's accuracy by one stage.

54 54 54 54 Recover Normal status 10

Heals the user by half its max HP.

Diamond, Pearl
Platinum
HeartGold, SoulSilver Generation 5 Generation 6 Move Type Class PP Power Acc Pri Effect
Egg: Appears on a newly-hatched Pokémon, if the father had the same move.
Egg, learned by Shellos but not Gastrodon
• Acid Armor Poison status 20

Raises the user's Defense by two stages.

• • • • Amnesia Psychic status 20

Raises the user's Special Defense by two stages.

• • Brine Water special 10 65 100%

Has double power against Pokémon that have less than half their max HP remaining.

• • Clear Smog Poison special 15 50

Removes all of the target's stat modifiers.

• • • • Counter Fighting physical 20 * 100% -5

Inflicts twice the damage the user received from the last physical hit it took.

• • • • Curse Ghost status 10

Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.

• • • • Fissure Ground physical 5 * 30%

Causes a one-hit KO.

• • • • Memento Dark status 10 100%

Lowers the target's Attack and Special Attack by two stages. User faints.

• • • • Mirror Coat Psychic special 20 * 100% -5

Inflicts twice the damage the user received from the last special hit it took.

• • Mist Ice status 30

Protects the user's stats from being changed by enemy moves.

• • • Sludge Poison special 20 65 100%

Has a 30% chance to poison the target.

• • • • Spit Up Normal special 10 * 100%

Power is 100 times the amount of energy Stockpiled.

• • • • Stockpile Normal status 20

Stores energy up to three times for use with Spit Up and Swallow.

• • • • Swallow Normal status 10

Recovers 1/4 HP after one Stockpile, 1/2 HP after two Stockpiles, or full HP after three Stockpiles.

• • • Trump Card Normal special 5 *

Power increases when this move has less PP, up to a maximum of 200.

• • • • Yawn Normal status 10

Target sleeps at the end of the next turn.

Diamond, Pearl
Platinum
HeartGold, SoulSilver Generation 5 Generation 6 Move Type Class PP Power Acc Pri Effect
Tutor: Can be taught at any time by an NPC.
Platinum HeartGold, SoulSilver Black 2, White 2 Ancient Power Rock special 5 60 100%

Has a 10% chance to raise all of the user's stats by one stage.

Platinum HeartGold, SoulSilver Black 2, White 2 Block Normal status 5

Prevents the target from leaving battle.

Platinum HeartGold, SoulSilver Black 2, White 2 Dive Water physical 10 80 100%

User dives underwater, dodging all attacks, and hits next turn.

Platinum HeartGold, SoulSilver Black 2, White 2 Earth Power Ground special 10 90 100%

Has a 10% chance to lower the target's Special Defense by one stage.

Platinum HeartGold, SoulSilver Black 2, White 2 Headbutt Normal physical 15 70 100%

Has a 30% chance to make the target flinch.

Platinum HeartGold, SoulSilver Black 2, White 2 Icy Wind Ice special 15 55 95%

Has a 100% chance to lower the target's Speed by one stage.

Platinum HeartGold, SoulSilver Black 2, White 2 Mud-Slap Ground special 10 20 100%

Has a 100% chance to lower the target's accuracy by one stage.

Platinum HeartGold, SoulSilver Black 2, White 2 Pain Split Normal status 20

Sets the user's and targets's HP to the average of their current HP.

Platinum HeartGold, SoulSilver Black 2, White 2 Sleep Talk Normal status 10

Randomly uses one of the user's other three moves. Only works if the user is sleeping.

Platinum HeartGold, SoulSilver Black 2, White 2 Snore Normal special 15 50 100%

Has a 30% chance to make the target flinch. Only works if the user is sleeping.

Platinum HeartGold, SoulSilver Black 2, White 2 String Shot Bug status 40 95%

Lowers the target's Speed by one stage.

Diamond, Pearl
Platinum
HeartGold, SoulSilver Generation 5 Generation 6 Move Type Class PP Power Acc Pri Effect
Machine: Can be taught at any time by using a TM or HM.
03 03 Water Pulse Water special 20 60 100%

Has a 20% chance to confuse the target.

06 06 06 06 Toxic Poison status 10 90%

Badly poisons the target, inflicting more damage every turn.

07 07 07 07 Hail Ice status 10

Changes the weather to a hailstorm for five turns.

10 10 10 10 Hidden Power Normal special 15 60 100%

Power and type depend upon user's IVs. Power can range from 30 to 70.

13 13 13 13 Ice Beam Ice special 10 90 100%

Has a 10% chance to freeze the target.

14 14 14 14 Blizzard Ice special 5 110 70%

Has a 10% chance to freeze the target.

15 15 15 15 Hyper Beam Normal special 5 150 90%

User foregoes its next turn to recharge.

17 17 17 17 Protect Normal status 10 4

Prevents any moves from hitting the user this turn.

18 18 18 18 Rain Dance Water status 5

Changes the weather to rain for five turns.

21 21 21 21 Frustration Normal physical 20 * 100%

Power increases as happiness decreases, up to a maximum of 102.

26 26 26 26 Earthquake Ground physical 10 100 100%

Inflicts regular damage and can hit Dig users.

27 27 27 27 Return Normal physical 20 * 100%

Power increases with happiness, up to a maximum of 102.

28 28 28 28 Dig Ground physical 10 80 100%

User digs underground, dodging all attacks, and hits next turn.

32 32 32 32 Double Team Normal status 15

Raises the user's evasion by one stage.

34 34 Sludge Wave Poison special 10 95 100%

Has a 10% chance to poison the target.

36 36 36 36 Sludge Bomb Poison special 10 90 100%

Has a 30% chance to poison the target.

37 37 37 37 Sandstorm Rock status 10

Changes the weather to a sandstorm for five turns.

39 39 39 39 Rock Tomb Rock physical 15 60 95%

Has a 100% chance to lower the target's Speed by one stage.

42 42 42 42 Facade Normal physical 20 70 100%

Power doubles if user is burned, paralyzed, or poisoned.

43 43 Secret Power Normal physical 20 70 100%

Has a 30% chance to inflict a status effect which depends upon the terrain.

44 44 44 44 Rest Psychic status 10

User sleeps for two turns, completely healing itself.

45 45 45 45 Attract Normal status 15 100%

Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.

55 55 Brine Water special 10 65 100%

Has double power against Pokémon that have less than half their max HP remaining.

58 58 Endure Normal status 10 4

Prevents the user's HP from lowering below 1 this turn.

48 48 Round Normal special 15 60 100%

Has double power if it's used more than once per turn.

55 55 Scald Water special 15 80 100%

Has a 30% chance to burn the target.

68 68 68 68 Giga Impact Normal physical 5 150 90%

User foregoes its next turn to recharge.

70 70 70 70 Flash Normal status 20 100%

Lowers the target's accuracy by one stage.

71 71 71 71 Stone Edge Rock physical 5 100 80%

Has an increased chance for a critical hit.

78 78 Bulldoze Ground physical 20 60 100%

Has a 100% chance to lower the target's Speed by one stage.

78 78 Captivate Normal status 20 100%

Lowers the target's Special Attack by two stages if it's the opposite gender.

80 80 80 80 Rock Slide Rock physical 10 75 90%

Has a 30% chance to make the target flinch.

83 Infestation Bug special 20 20 100%

Prevents the target from fleeing and inflicts damage for 2-5 turns.

82 82 Sleep Talk Normal status 10

Randomly uses one of the user's other three moves. Only works if the user is sleeping.

83 83 Natural Gift Normal physical 15 * 100%

Power and type depend on the held berry.

87 87 87 87 Swagger Normal status 15 90%

Raises the target's Attack by two stages and confuses the target.

88 Sleep Talk Normal status 10

Randomly uses one of the user's other three moves. Only works if the user is sleeping.

90 90 90 90 Substitute Normal status 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.

94 94 Rock Smash Fighting physical 15 40 100%

Has a 50% chance to lower the target's Defense by one stage.

100 Confide Normal status 20

Lowers the target's Special Attack by one stage.

H3 H3 H3 H3 Surf Water special 15 90 100%

Inflicts regular damage and can hit Dive users.

H4 H4 H4 H4 Strength Normal physical 15 80 100%

Inflicts regular damage with no additional effect.

H5 H5 Waterfall Water physical 15 80 100%

Has a 20% chance to make the target flinch.

H6 Dive Water physical 10 80 100%

User dives underwater, dodging all attacks, and hits next turn.

H5 Whirlpool Water special 15 35 85%

Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.

H6 H6 Rock Smash Fighting physical 15 40 100%

Has a 50% chance to lower the target's Defense by one stage.

H7 H7 Waterfall Water physical 15 80 100%

Has a 20% chance to make the target flinch.

External Links