Is Gastrodon Good in Ultra Sun & Ultra Moon Playthrough?
Water/Ground with AbilityStorm Drain granting Water immunity plus a Special Attack boost. Hapu runs one on her Grand Trial team. Only weak to Grass, handles Molayne's E4 with Ground, Olivia with Water, and Kiawe with Water. Simple, effective, and easy to obtain.
Shellos has the type edge here and should clean up Ilima's team.
Hala's team hits Shellos's weaknesses hard.
Lana's team hits Shellos's weaknesses hard.
ElectricSteelReceived as a Totem-sized gift Pokemon by collecting enou... (Ultra Moon only)
BugElectricReceived as a Totem-sized gift Pokemon by collecting enou... (Ultra Sun only)
GrassReceived as a Totem-sized gift Pokemon by collecting enou... (Ultra Sun only)
GhostFairyReceived as a Totem-sized gift Pokemon by collecting enou...
Shellos resists most of Kiawe's coverage and hits back hard.
Shellos trades roughly evenly with Mallow's team.
Shellos has the type edge here and should clean up Olivia's team.
Shellos has the type edge here and should clean up Sophocles's team.
Shellos trades roughly evenly with Acerola's team.
Shellos trades roughly evenly with Nanu's team.
Mina's team hits Shellos's weaknesses hard.
Shellos trades roughly evenly with Hapu's team.
Gastrodon has the type edge here and should clean up Molayne's team.
Gastrodon has the type edge here and should clean up Olivia's team.
Gastrodon trades roughly evenly with Acerola's team.
Kahili's team hits Gastrodon's weaknesses hard.
Gastrodon trades roughly evenly with Kukui's team.
Catch Gastrodon on Poni Wilds (walking, Lv 41-44).
Shellos can be received through an in-game trade on Seafolk Village. Trade Granbull. In-game trade with an NPC at seafolk village
How to Get Gastrodon in Ultra Sun & Ultra Moon
decent spawn rates for Gastrodon across 10 locations in late-game routes. Nothing complicated. Check the sorted list below, compare the top few options, and head to whichever is closest.
Where To Catch Gastrodon in USUM
The path to Gastrodon starts with Shellos at Lv. 41-45 via walking, surfing, and more encounters. 2 catchable stages total, with locations listed for each one below.
Step 1Catch ShellosSeafolk VillageLv.44In-game tradeTrade for (give Granbull)
Step 2Gastrodon ✓Ancient Poni PathLv.41-44Surfing on waterRate 20%Poni Breaker CoastLv.41-44Surfing on waterRate 20%Ancient Poni PathLv.41-44GrassRate 10%Poni WildsLv.41-44GrassRate 10%Exeggutor IslandLv.42-45GrassRate 10%or evolve from Shellos (Step 1)
Gastrodon Weakness
Gastrodon's Water/Ground typing leaves it vulnerable to Grass. Grass hits land at 4x, so they're the biggest threat. It shrugs off Electric-type attacks completely. It resists 4 types, giving it decent defensive coverage. Storm Drain grants an additional Water immunity, reshaping the matchup chart. With 111 HP and balanced defenses, Gastrodon can afford to eat a neutral hit or two.
| Damage | Types |
|---|---|
| 4x (Critical) | Grass |
| 0.5x (Resist) | Fire, Poison, Rock, Steel |
| 0x (Immune) | Electric |
What is Gastrodon Weak Against
GoodBest Pokemon Against Gastrodon
 Decidueye GrassGhost | C | |
Obtain MethodEvolve Rowlet (Route 1 Gift) | ||
 Venusaur GrassPoison | C | |
Available Move Moves
Damage vs Gastrodon View Venusaur builds →Petal Dance 4x176-208%KO | ||
 Lilligant Grass | C | |
 Grovyle Grass | C | |
 Lurantis Grass | C | |
Obtain MethodHeahea Beach Gift Available Move Moves
Damage vs Gastrodon View Lurantis builds →Petal Blizzard 4x161-189%KO | ||
S | ||
Recommended Build AbilityElectric Surge ItemChoice Specs NatureTimid Moves
Damage vs Gastrodon View Tapu Koko builds →Dazzling Gleam20-24% | ||
A | ||
Recommended Build AbilityFlashfire ItemLeftovers NatureCalm Moves View Heatran builds →
| ||
B | ||
Recommended Build AbilityMagnetpull ItemChoice Specs NatureTimid Moves
Damage vs Gastrodon View Magnezone builds →Flash Cannon12-15% | ||
B | ||
Recommended Build AbilityStatic ItemRocky Helmet NatureBold Moves
Damage vs Gastrodon View Zapdos builds →Heat Wave8-9% | ||
C | ||
Recommended Build AbilityDrizzle ItemDamprock NatureRelaxed Moves
Damage vs Gastrodon View Pelipper builds →U Turn9-11% Hurricane15-17% Scald11-13% | ||
Gastrodon Evolutions
Gastrodon is the evolved form of Shellos. Breeding produces Shellos eggs, and they're average hatch time. Evolving from Shellos gave Gastrodon the biggest boost in HP (+35), bringing the total to 475 stats. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Gastrodon to get Shellos eggs easily using 52 partners from the Indeterminate and Water1 egg groups. Notable egg moves include Acid Armor, Amnesia, Brine and 13 more.
USUM Gastrodon Best Moveset
111 HP with Water/Ground typing leaving only Grass as a weakness. AbilityStorm Drain absorbs Water for a Sp. Atk boost. 92 Sp. Atk provides moderate Water TermStab. MoveRecover heals. But 39 Speed acts dead last. The moveset absorbs Water attacks and heals reliably, limited by Speed and offensive power.
Best Build
Gastrodon best EVs are Sp. Def and HP
Wall Moveset
- Recover
- Scald
- Toxic
- Earthquake
Recommended Teammates
Moves List
The natural movepool does the job, but Acid Armor and Amnesia from the egg pool give Gastrodon something extra. Pair those with Earthquake and Muddy Water for STAB and coverage across 7 types for reach, and the kit fills out nicely.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Base Stats
Long ago, it had a shell on its back. There’s now a vestigial plate on its back that’s hard but thin.
Their shape and color change, depending on their environment and diet. There are many of them at beaches where the waves are calm.
Gastrodon Ultra Sun & Ultra Moon Guide
In Ultra Sun & Ultra Moon, Don't let Gastrodon's 475 base stat total fool you. Storm Drain is what makes it tick. It punches way above its weight class. We rate it C-Tier as a trick room. Recover with Leftovers is the standard set.
In Ultra Sun & Ultra Moon, watch for Roserade (Grass) when using Gastrodon. They all hit it super-effectively with STAB. Roserade is the most dangerous since Grass moves deal 4x damage. Only 1 weakness means fewer dedicated counters to worry about. At base 39 Speed, Gastrodon won't outrun any of these threats so switching to a resist is usually the safer play.
In Ultra Sun & Ultra Moon, Run Storm Drain on Gastrodon. It's the ability that defines how you build around it and the main reason it holds a competitive niche. Gastrodon also gets Sticky Hold and Sand Force, but they don't compare.
In Ultra Sun & Ultra Moon, Gastrodon fills the trick room role. It's a mixed attacker with base 83 Attack and 92 Sp. Atk. Base 39 Speed is low. Priority moves or Trick Room are the way to go. And it's enough bulk to take a hit or two.
In Ultra Sun & Ultra Moon, run Recover, Scald, Toxic, and Earthquake on Gastrodon. Recover is the most common pick at 0% usage. Scald provides reliable STAB damage.
Game Availability
Gastrodon first appeared in Diamond & Pearl and has been available in 13 games across 7 generations. Obtainable through wild encounters in most titles where it appears.
Click a game to view version-specific details
- Gen 1RB
Red & Blue - Gen 1Y
Yellow - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG
FireRed & LeafGreen - Gen 4DPDebut
Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7SM
Sun & Moon - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves