
Is Gastrodon Good in Diamond & Pearl Playthrough?
Water/Ground with one Grass weakness. AbilityStorm Drain draws Water attacks in double battles. Gastrodon handles Volkner, Flint, and Byron. Bulky and reliable through the entire late game. The native Water/Ground option that makes Quagsire imports pointless.
Shellos resists most of Roark's coverage and hits back hard.
Gardenia's team hits Shellos's weaknesses hard.
Shellos trades roughly evenly with Maylene's team.
Crasher Wake's typing presses Shellos's defenses.
Gastrodon trades roughly evenly with Fantina's team.
Gastrodon has the type edge here and should clean up Byron's team.
Gastrodon trades roughly evenly with Candice's team.
Gastrodon has the type edge here and should clean up Volkner's team.
Gastrodon trades roughly evenly with Aaron's team.
Gastrodon has the type edge here and should clean up Bertha's team.
Gastrodon has the type edge here and should clean up Flint's team.
Gastrodon trades roughly evenly with Lucian's team.
Gastrodon has the type edge here and should clean up Mars's team.
Gastrodon resists most of Jupiter's coverage and hits back hard.
Gastrodon has the type edge here and should clean up Saturn's team.
Gastrodon trades roughly evenly with Cynthia's team.
Catch Shellos
Catch Shellos on Route 205 (walking, Lv 8-10, common).
Recommended Moves
- STARTING (Lv 8)
- LV 8WaterWater PulsePower 90Accuracy 100%PP 20
- After Gardenia
- TM14IceBlizzardPower 120Accuracy 70%PP 5Lake Acuity
- TM13IceIce BeamPower 95Accuracy 100%PP 10Route 216
- LV 29NormalBody SlamPower 85Accuracy 100%PP 15
- After Crasher Wake
- HM03WaterSurfPower 143Accuracy 100%PP 15Celestic Town
- TM55WaterBrinePower 98Accuracy 100%PP 10Prize for defeating Crasher Wake
- LV 37WaterMuddy WaterPower 143Accuracy 85%PP 10
- Post-Game
- TM42NormalFacadePower 70Accuracy 100%PP 20Survival Area
Evolve Shellos to Gastrodon
Shellos evolves into Gastrodon at Level 30. Your Shellos should hit Level 30 before you reach Fantina, at typical leveling pace.
Recommended Moves
- After Gardenia
- TM28GroundDigPower 120Accuracy 100%PP 10Maniac Tunnel
- TM68NormalGiga ImpactPower 150Accuracy 90%PP 5Veilstone Game Corner
- TM15NormalHyper BeamPower 150Accuracy 90%PP 5Veilstone Department Store
- After Crasher Wake
- HM03WaterSurfPower 143Accuracy 100%PP 15Celestic Town
- TM55WaterBrinePower 98Accuracy 100%PP 10Prize for defeating Crasher Wake
- After Byron
- TM26GroundEarthquakePower 150Accuracy 100%PP 10Wayward Cave (secret entrance under bike path)
- LV 41WaterMuddy WaterPower 143Accuracy 85%PP 10
- After Volkner
- HM07WaterWaterfallPower 120Accuracy 100%PP 15Sunyshore City
- Post-Game
- TM42NormalFacadePower 70Accuracy 100%PP 20Survival Area
How to Get Gastrodon in Diamond & Pearl
Gastrodon crawls six spots, common to rare, with levels stretching from the high 20s past 50. The evolved slug keeps the regional color of the Shellos it grew from, west or east.
6 locations to catch Gastrodon7 locations to catch Shellos
Encountered via tall grass encounters
Encountered via tall grass encounters
Catch Shellos at any of the 7 locations below, then level it up to 30 — it evolves into Gastrodon.
Where To Catch Gastrodon in DP
Available earlier: catch Shellos (before Badge 2) and evolve it at Lv 30. Wild Gastrodon first appears at Route 221 (after Badge 5).
Step 1Catch Shellos
Step 2Gastrodon ✓Route 221Lv.28-30GrassPearlRate 30%Route 218Lv.28-30GrassRate 20%Fuego IronworksLv.29-30FloorRate 15%Route 221Lv.29-30GrassDiamondRate 10%or evolve from Shellos (Step 1)
To plan your throws, open the Diamond & Pearl catch rate calculator with Gastrodon preloaded.
How to Get Shiny Gastrodon in Diamond & Pearl
Gastrodon oozes over Route 218, Route 221, and Route 222, so a PokeRadar chain in that grass reaches its 1 in 200 shiny. Compare Shiny Gastrodon odds across every game
Diamond & Pearl Shiny Gastrodon Calculator
3 MethodsThe best route is PokeRadar Chain at full boosts, about 1 in 200 on each try. Tune it below.
PokeRadar Chain: Chain shaking-grass patches without breaking the combo. The rate peaks at a chain of 40.
Masuda Method: Breed with a parent from a different-language game. Works on any breedable line.
Full Odds: Walk through grass, surf, or fish. Every encounter is its own independent shiny roll.
How many you have done, or plan to do.
| Chance | Encounters | Time |
|---|---|---|
| 10%lucky few | 22-- | -- |
| 25%one in four | 58-- | -- |
| 50%coin flip | 139-- | -- |
| 90%very likely | 460-- | -- |
Time assumes -- at your pace and does not change your shiny odds.
How is this calculated?
Every encounter has the same shiny chance, the Shiny Odds Per Try shown above. Each one is a separate roll that does not care how many you have already done, so the more you hunt, the higher your overall chance of at least one shiny. The formula below turns your odds and your number of tries into that combined chance.
chance after N tries = 1 − (1 − p)^N, where p = 1 / odds per try
Example at 1 in 8,192 (classic full odds): about 864 encounters for a 10 percent chance, 5,678 for 50 percent, and 18,862 for 90 percent.
The table above flips that around: it shows how many encounters it takes to reach a 10, 25, 50, and 90 percent chance at your current odds. Turning on boosts like the Shiny Charm, sandwiches, or chains improves your odds, so the encounter numbers drop.
These are estimates, not promises. Most games have no pity counter, meaning no guaranteed shiny no matter how many you hunt, so even Very Likely is not guaranteed: some hunters find one early, others go well past that point.
For time estimates and charm math, open the Diamond & Pearl shiny odds calculator with Gastrodon already selected.
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 |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
What is Gastrodon Weak Against
GoodBest Pokemon Against Gastrodon
Exeggutor GrassPsychic | C | |
Available Move Moves
Damage vs Gastrodon View Exeggutor builds →Leaf Storm 4x238-280%KO | ||
Roserade GrassPoison | B | |
Ludicolo WaterGrass | C | |
Abomasnow GrassIce | C | |
Available Move Moves
Damage vs Gastrodon View Abomasnow builds →Wood Hammer 4x185-218%KO | ||
Torterra GrassGround | C | |
Obtain MethodEvolve Turtwig (Lake Verity Gift) Available Move Moves
Damage vs Gastrodon View Torterra builds →Wood Hammer 4x213-251%KO | ||
Shiftry GrassDark | C | |
Cherrim Grass | C | |
Carnivine Grass | C | |
Parasect BugGrass | C | |
Breloom GrassFighting | A | |
Cradily RockGrass | C | |
Obtain MethodEvolve Lileep (Oreburgh City Gift) | ||
Wormadam BugGrass | C | |
Leafeon Grass | C | |
Obtain MethodEvolve Eevee (Hearthome City Gift) | ||
Gastrodon Evolutions
Gastrodon is the evolved form of Shellos. Breeding produces Shellos eggs, and they take an average time to hatch. 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 31 partners from the Amorphous and Water 1 egg groups. Notable egg moves include Amnesia, Counter, Curse and 7 more.
DP Gastrodon Best Moveset
Water/Ground typing only weak to Grass (4x), and 111 HP gives real bulk. AbilityStorm Drain redirects Water moves, protecting teammates in doubles. The moveset runs special Water and Ground attacks off 92 Sp. Atk with enough HP to take hits. 39 Speed means always going last.
Best Build
Gastrodon best EVs are HP and Sp. Def
Wall Moveset
- Recover
- Ice Beam
- Surf
- Earth Power
Recommended Teammates
Moves List
The natural movepool does the job, but Amnesia and Counter from the egg pool give Gastrodon something extra. Pair those with Earthquake and Muddy Water for STAB and Normal and Ice coverage and more 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
35 of 36 TMs are obtainable before the Elite Four
Egg Moves
Tutor Moves
Base Stats
It has a pliable body without any bones. If any part of its body is torn off, it grows right back.
It apparently had a huge shell for protection in ancient times. It lives in shallow tidal pools.
Gastrodon Diamond & Pearl Guide
In Diamond & Pearl, use Gastrodon as a trick room. Splits damage between physical and special. It's slow, so Trick Room or priority moves are key. Surf is the primary attack.
For Diamond & Pearl, run Careful on Gastrodon. +Sp. Def is what matters, and the -Sp. Atk cut doesn't hurt this set. Fits the trick room role.
Game Availability
Gastrodon first appeared in Diamond & Pearl and has been available in 13 games across 6 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 7Let's Go

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
Explore
Where to go next after Gastrodon.
