Special
Balanced
30Speed · Very Slow

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.

Base Stats
Avg
HP38
F
Attack30
F
Defense85
C
Sp. Atk55
D
Sp. Def65
C
Speed30
F
Total303
Details
Catch Rate
Easy190 / 255
Growth Rate
Medium Fast1M XP
Height0.5 m
Weight1.5 kg
Base XP61
Abilities
MummyTop Pick
Changes attacking Pokémon's abilities to Mummy on contact.
EV Yield
HPAtkDef+1SpASpDSpe
Defense training source
Pokedex Entries

A clay slab with cursed engravings took possession of a Yamask. The slab is said to be absorbing the Yamask’s dark power.

Type-wise, Yamask takes extra damage from Ghost and Dark. Normal and Fighting moves do nothing thanks to a full immunity.

Yamask Weakness and Resistance Chart
DamageTypes
2x (Weak)Ghost, Dark
0.5x (Resist)Poison, Bug
0x (Immune)Normal, Fighting
Type ChartExcellent
2Weak
2Resist
2Immune
Score+4
4xCritical
None
2xWeak
½xResist
¼xResist
None
STAB (2)
How to Beat Yamask (Best Counters)

Chi-Yu's Dark Pulse hits Yamask for 83-98%. Chandelure threatens a KO with Shadow Ball (130-154%). Weavile deals 52-61% with Knock Off.

Chi-Yu
Chi-Yu
DarkFire
A
Recommended Build
AbilityBeadsofruin
ItemChoice Scarf
NatureTimid
Moves
  • Heat Wave
  • Dark Pulse
  • SnarlSTAB
  • OverheatSTAB
Damage vs Yamask
Heat Wave
49-58%
Dark Pulse 2x
83-98%
Snarl 2x
57-68%
Overheat
67-79%
View Chi-Yu builds →

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. View every chain in the Evolution Chart.

How to Evolve

2 Evolutions
Stat Comparison 3 Stages
Yamask
Ghost
HP
38
58+20
58+20
ATK
30
50+20
95+65
DEF
85
145+60
145+60
SP.ATK
55
95+40
50-5
SP.DEF
65
105+40
105+40
SPE
30
30
30
BST
303D-Tier
483C-Tier+180
483C-Tier+180
ROLE
Balanced
Trick Room
Trick Room
TYPE
Special
Special
Physical

Breeding

Very Easy

Breed Yamask easily with 63 breeding partners from the Indeterminate and Mineral egg groups.

Egg Groups
IndeterminateMineral
Gender
50.0%50.0%
Hatch Time
25 cycles·6,425 steps
Moderate~6 min with Flame Body
Breed With (best first)
gardevoirgalladeglaliefroslasscrustleferrothorngastrodonstunfisktrevenantshellosdwebblephantump

The build centers on Toxic Spikes and survivability. Eviolite means a bulk boost that only works before full evolution, and spread EVs give Yamask the bulk to set up repeatedly. Mummy adds another layer of staying power.

Best Build

All 8 games
Experimental
Wall
Ability
Mummy
Item
EvioliteBULK
Best Nature for Yamask

Yamask best EVs are Sp. Def and Defense

EVs

Wall Moveset

  • Will O Wisp
  • HexSTAB
  • Knock Off
  • Toxic Spikes

Moves

All 8 games

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

Lv 1
Confusion
D5010025Psychic
Lv 1
Protect+4
C10Normal
Lv 4
Haze
C30Ice
Lv 8
Confuse Ray
C10010Ghost
Lv 12
Fake Tears
C10020Dark
Lv 16
Will-O-Wisp
S8515Fire
Lv 22
Infestation
D2010020Bug
Lv 30
Psyshock
D8010010Psychic
Lv 36
Curse
C10Ghost
Lv 40
Shadow Ball
C8010015Ghost
Lv 44
Dark Pulse
D8010015Dark
Lv 46
Phantom Force
D9010010Ghost
Lv 48
Parting Shot
C10020Dark

TM Moves

TM
TM06
Calm Mind
C20Psychic
TM91
Curse
C10Ghost
TM90
Dark Pulse
D8010015Dark
TM127
Dream Eater
D10010015Psychic
TM35
Endure+4
C10Normal
TM26
Energy Ball
D9010010Grass
TM109
Facade
D7010020Normal
TM97
Heal Block
10015Psychic
TM80
Iron Defense
C15Steel
TM45
Knock Off
S6510020Dark
TM46
Mud Shot
D559515Ground
TM83
Nasty Plot
C20Dark
TM119
Ominous Wind
D601005Ghost
TM17
Protect+4
C10Normal
TM63
Psychic
D9010010Psychic
TM03
Psyshock
D8010010Psychic
TM51
Safeguard
C25Normal
TM48
Self-Destruct
C2001005Normal
TM74
Shadow Ball
C8010015Ghost
TM61
Shadow Claw
D7010015Ghost
TM118
Shadow Punch
D6020Ghost
TM37
Stealth Rock
C20Rock
TM85
Substitute
C10Normal
TM08
Thunder Wave
C9020Electric
TM89
Toxic Spikes
S20Poison
TM57
Will-O-Wisp
S8515Fire
TM59
Zen Headbutt
D809015Psychic

Egg Moves

Yamask doesn't have any Egg moves

Tutor Moves

Yamask can't learn any Tutor moves
All 8 games

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.

Yamask is not available as a wild encounter in this game.

Also found in:

  • Yamask has 2 evolution paths: Cofagrigus at level 34 and Galarian Runerigus by leveling up at Dusty Bowl. Different conditions, different results.

  • Yamask has 2 evolution paths: Cofagrigus at level 34 and Galarian Runerigus by leveling up at Dusty Bowl. Different method for each one.

  • You can run Yamask through the first few routes without issues. 303 BST won't carry you far though. Get it to Cofagrigus as fast as you can.

  • Yamask is catchable across 8 games. Debuted in Legends: Z-A and most recently available in Black & White and Black 2 & White 2.

Since debuting in Black & White, Yamask has appeared in 8 titles over 6 generations. Along the way, it received a Galarian form in Generation 8, keeping it relevant across different competitive metas.

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