Yamask sits at the start of its evolution line — not yet at full power, but that changes fast. Most trainers push through to Cofagrigus as fast as possible. Normal and Fighting moves can't touch it, and only 2 types hit it super-effectively. Known as the Spirit Pokemon.
Defense and Sp. Def carry most of Yamask's stat budget. Attack's the obvious dump stat. Common in the wild and yields 1 Defense EV. Follows a medium-fast 1M XP curve.
A clay slab with cursed engravings took possession of a Yamask. The slab is said to be absorbing the Yamask’s dark power.
It’s said that this Pokémon was formed when an ancient clay tablet was drawn to a vengeful spirit.
Yamask Weakness
ExcellentType-wise, Yamask takes extra damage from Ghost and Dark. Normal and Fighting moves do nothing thanks to a full immunity.
One evolution ahead. Yamask grows into Cofagrigus through a straightforward two-stage chain. Plenty of partners for breeding via two egg groups. Eggs are average hatch time. Evolving adds up to 180 stat points total.
How to Evolve
The build centers on Toxic Spikes and survivability. Eviolite means a bulk boost that only works before full evolution, and a spread EV build EVs give Yamask the bulk to set up repeatedly. Mummy adds another layer of staying power.
Best Build
Best Yamask Moveset
- Will O Wisp
- Hex
- Knock Off
- Toxic Spikes
Recommended Teammates
TMs carry this one. Yamask learns Phantom Force and Shadow Ball naturally for STAB, but the offensive range comes almost entirely from technical machines. Psychic and Bug and beyond give it real matchup play.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Leveling does the heavy lifting. Yamask picks up Energy Ball and Psychic along the way, building toward a complete offensive set. TMs add Dark and Grass coverage and more, but the foundation's already strong by then.
The egg pool carries weight here. Ally Switch and Crafty Shield aren't available any other way for Yamask, and they meaningfully change what it threatens. Stack those on top of Shadow Ball and Hex for solid options.
The egg pool carries weight here. Ally Switch and Disable aren't available any other way for Yamask, and they meaningfully change what it threatens. Stack those on top of Shadow Ball and Hex for solid options.
Yamask doesn't appear in Legends: Z-A. Transfer it from Black, Black 2, or Sword to add it to your collection. Check the source games below for encounter details.
2 encounter spots for Yamask at high spawn rates starting from mid-game routes. Best and Earliest sort options below help narrow down your approach based on odds vs. Accessibility.
Best Locations
Yamask doesn't appear in Ultra Sun & Ultra Moon. Transfer it from Black, Black 2, or Sword to add it to your collection. Check the source games below for encounter details.
Yamask is meant to evolve into Cofagrigus. At 303 BST, the stats aren't there for competitive play yet. Pre-evolution Pokemon rarely hold up against fully evolved threats.
Yamask can evolve into Cofagrigus and Galarian Runerigus depending on the method. Yamask is the base form in a 3-stage evolutionary line.
Mummy is the go-to ability for Yamask. It changes attacking Pokémon's abilities to Mummy on contact. It's Yamask's only ability.
Base 30 Speed is low. Priority moves or Trick Room are the way to go. On offense, Yamask is a special attacker with base 55 Sp. Atk.
Yamask appears in 8 games, including Black & White, Black 2 & White 2, and X & Y.
Since debuting in Black & White, Yamask has appeared in 8 titles over 5 generations. Along the way, it received a Galarian form in Generation 8, keeping it relevant across different competitive metas.
- 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 IVDP

Diamond & Pearl - Gen VBWDebut

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 VIIISwShGalarian

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A

