
Is Shellos Good in Diamond & Pearl Playthrough?
Route 205 Water-type. Two forms (East Sea, West Sea) that are cosmetic only. Gastrodon at 30 adds Ground. AbilityStorm Drain draws Water moves in doubles battles. One Grass weakness on the evolution. Available early.
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.
Catchable
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 Shellos in Diamond & Pearl
Shellos oozes across seven coastal spots, common to rare from level 7 up. The sea slug comes in two colors split by where you are on the map, the West and East seas painting it differently.
7 locations to catch Shellos
Encountered via tall grass encounters
Where To Catch Shellos in DP
Shellos is where the line starts, caught through walking encounters at Lv. 7-28. The chain covers 2 catchable stages before reaching the final form.
Step 1Shellos ✓
Step 2Catch or Evolve into GastrodonRoute 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)
Want the exact numbers? Work out your catch odds in Diamond & Pearl for Shellos.
How to Get Shiny Shellos in Diamond & Pearl
Shellos slinks across Route 205, Route 213, and Route 218, where a PokeRadar chain is what drops its shiny within reach. Compare Shiny Shellos odds across every game
Diamond & Pearl Shiny Shellos 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.
Curious how fast a hunt could go? Work out your Diamond & Pearl shiny odds for Shellos.
Shellos Weakness
Type-wise, Shellos takes extra damage from Electric and Grass. The Water typing picks up 4 resistances to work with. Storm Drain grants an additional Water immunity, reshaping the matchup chart.
| Damage | Types |
|---|---|
| 2x (Weak) | Electric, Grass |
| 0.5x (Resist) | Fire, Water, Ice, Steel |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
What is Shellos Weak Against
GoodBest Pokemon Against Shellos
Rotom ElectricGhost | C | |
Obtain MethodOld Chateau Interact Encounter | ||
Shiftry GrassDark | C | |
Elekid Electric | B | |
Electrike Electric | C | |
Grotle Grass | C | |
Obtain MethodEvolve Turtwig (Lake Verity Gift) | ||
Luxio Electric | C | |
Pachirisu Electric | C | |
Lombre WaterGrass | D | |
Cherubi Grass | D | |
Budew GrassPoison | C | |
Wormadam BugGrass | C | |
Lileep RockGrass | C | |
Obtain MethodOreburgh City Gift | ||
Shellos Evolutions
Shellos is the base form in a two-stage line leading to Gastrodon. Check the evolution method below. A decent partner pool for breeding via two egg groups. Eggs take an average time to hatch. Evolving adds up to 150 stat points total. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Shellos easily with 31 breeding partners from the Amorphous and Water 1 egg groups. Pass egg moves like Amnesia, Counter, Curse and 7 more to offspring.
DP Shellos Best Moveset
Water typing with AbilityStorm Drain redirecting Water moves to Shellos, though it doesn't boost Sp. Atk this generation. The moveset has basic Water attacks. Evolve to Gastrodon.
Best Build
Shellos best EVs are Speed and Sp. Atk
Special Revenge Killer Moveset
- Surf
- Earth Power
- Ice Beam
- Hidden Power Grass
Recommended Teammates
Moves List
Breeding's the move. Amnesia and Counter give Shellos options it can't learn any other way, and Ground and Normal coverage and more already covers a decent range on top of Muddy Water and Surf. The egg moves push it further.
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
22 of 23 TMs are obtainable before the Elite Four
Egg Moves
Tutor Moves
Base Stats
Its colors and shapes differ from region to region. In the Sinnoh region, two types are confirmed.
It lives along bodies of water. Its body shape has changed to suit its habitat.
Shellos Diamond & Pearl Guide
In Diamond & Pearl, for a casual playthrough, Shellos works as a placeholder. Water coverage is useful early. The real payoff is Gastrodon. That's where the stats start mattering.
Game Availability
Debuting in Diamond & Pearl, Shellos appears in 13 games across 6 generations. A reliable presence in a solid number of games, typically found through catching or hatching as a base form.
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 Shellos.
