Shellos is technically a pre-evolution of Gastrodon, but it holds its own in formats where Eviolite is allowed. Storm Drain redirects Water moves and boosts its Sp. Atk, adding extra value. Only weak to Electric and Grass.
Nothing fancy in Shellos's spread. It leans mixed with HP out front. And you'll get 1 HP EV per KO for it. Follows a medium-fast 1M XP curve.
It used to have a shell on its back long ago. This species is closely related to Pokémon like Shellder.
It oozes a purple fluid to deter enemies. Apparently, there are more West Sea Shellos now than there were in the past.
Shellos Weakness
GoodType-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.
Shellos is the base form in a two-stage line leading to Gastrodon. Check the evolution method below. Plenty of partners for breeding via two egg groups. Eggs are average hatch time. Evolving adds up to 150 stat points total.
How to Evolve
Breed Shellos easily with 63 breeding partners from the Indeterminate and Water1 egg groups.
The build centers on Stealth Rock and survivability. Eviolite means a bulk boost that only works before full evolution, and a spread EV build EVs give Shellos the bulk to set up repeatedly. Stickyhold adds another layer of staying power. Recover keeps it healthy between hits.
Best Build
Best Shellos Moveset
- Recover
- Stealth Rock
- Earth Power
- Surf
Recommended Teammates
Most of Shellos's flexibility comes from TMs. Same-type output runs through Hydro Pump and Muddy Water, but Ground and Rock and the rest of the TM pool push it from predictable to genuinely threatening.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
A compact toolkit overall. The offense runs through Hydro Pump and Water Pulse for Shellos, with Ground and Normal coverage and more doing what it can. Don't expect versatility from this one.
Breeding's the move. Acid Armor and Amnesia give Shellos options it can't learn any other way, and coverage across 7 types already covers a decent range on top of Muddy Water and Surf. The egg moves push it further.
Breeding's the move. Acid Armor and Clear Smog give Shellos options it can't learn any other way, and coverage across 8 types already covers a decent range on top of Hydro Pump and Muddy Water. The egg moves push it further.
Easy grab on Shellos with high spawn rates across 10 locations in mid-game routes. The sorted list below shows the full spread so you can pick the most convenient spot.
Best Locations
Which version you're playing matters for Shellos. 10 walking spots at Lv. 16-55 spread across Scarlet and Violet, and some routes only appear in one cartridge. Check the version badges below.
A handful of locations for Shellos with decent spawn rates across mid-game routes. The sort toggle below swaps between best odds and earliest access, so you can approach it based on where you are in the game.
Best Locations
You can find Shellos through 4 walking encounters at walking. The list is sorted by game progression, so the earliest accessible spots show up first.
Shellos is available from early-game routes onward at high spawn rates. 20 encounter spots give you plenty of options. Grab one early and it'll be ready to evolve or train by mid-game.
Best Locations
Shellos's encounter pool splits between Brilliant Diamond and Shining Pearl. You've got 20 walking spots at Lv. 7-28 total, but your version determines which ones actually show up.
high spawn rates in mid-game routes across 26 locations. Shellos's one of the easier catches on the list. Knock it out fast and save your time for harder targets.
Best Locations
26 spots to find Shellos at Lv. 20-28 via walking. Not all of them exist in both Shield and Sword versions, so filter by your copy below.
At 325 BST, Shellos is firmly in pre-evolution territory. Evolve it into Gastrodon before bringing it to any serious fight.
Shellos evolves into Gastrodon at level 30. Shellos is the base form of this evolutionary line.
Shellos gets Storm Drain, Sticky Hold, and Sand Force. But Storm Drain is the one that matters — it's the centerpiece of every viable set. Build around that.
Shellos is a physical attacker with base 48 Attack. But the speed tells the real story — base 34 Speed is low. Priority moves or Trick Room are the way to go.
Shellos appears in 13 games, including Platinum, HeartGold & SoulSilver, and Diamond & Pearl.
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.
- Gen IY
Yellow - Gen IRB
Red & Blue - Gen IIGS
Gold & Silver - Gen IIC
Crystal - Gen IIIRS
Ruby & Sapphire - Gen IIIFRLG
FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS
HeartGold & SoulSilver - Gen IVDPDebut
Diamond & Pearl - Gen VBW
Black & White - Gen VB2W2
Black 2 & White 2 - Gen VIXY
X & Y - Gen VIORAS
Omega Ruby & Alpha Sapphire - Gen VIIUSUM
Ultra Sun & Ultra Moon - Gen VIISM
Sun & Moon - Gen VIILGPE
Let's Go Pikachu & Eevee - Gen VIIISwSh
Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP
Brilliant Diamond & Shining Pearl - Gen IXSV
Scarlet & Violet - Gen IXLZA
Legends: Z-A