Yamask in Pokémon GO

Type	Ghost
Pokédex number	#562
Base Attack / Defense / Stamina	95 / 141 / 116
Max CP, level 40 / 50 / 51	982 / 1,110 / 1,123
Max HP, level 50	110
Buddy distance	3 km per Candy
Second Charged Attack	50,000 Stardust and 50 Candy
Height / weight	0.5 m / 1.5 kg

Yamask evolution

Pokémon GO has no evolution levels: a Pokémon evolves when you spend Candy on it (sometimes with an item or a task), at any level.

Yamask evolves into Cofagrigus for 50 Yamask Candy.

Family: Yamask · Cofagrigus

Yamask CP by level

Combat Power with perfect stats (15/15/15) and with 10/10/10. Players find that raid, egg and research catches never have a stat below 10; that floor is their measurement, not a number in the game data.

Level	CP 15/15/15	CP 10/10/10	HP 15/15/15	Note
15	420	387	67	research rewards are at most level 15 (game master)
20	561	516	78	eggs hatch at most level 20 (game master); raid catches are level 20 (players’ measurement)
25	701	646	87	raid catches in weather that boosts the boss’s type are level 25 (players’ measurement)
30	841	775	95	wild Pokémon are at most level 30 (game master)
35	912	839	99
40	982	904	103
45	1,045	962	106
50	1,110	1,022	110
51	1,123	1,034	110	best buddy bonus on a level 50 Pokémon

Yamask best moveset

Ranked by damage per second over one cycle of fast attacks and one charged attack. Assumptions: Yamask at level 40 with 15/15/15, a target with 180 Defense taking neutral damage, no weather boost, and the energy Yamask gains from being hit left out.

Fast attack	Charged attack	Damage per second
Astonish	Shadow Ball	5.9
Zen Headbutt	Shadow Ball	5.2
Astonish	Dark Pulse	4.6
Astonish	Ominous Wind	4.5
Zen Headbutt	Ominous Wind	4.3

Fast attacks

Move	Type	Power	Energy	Time	Power / s
Astonish	Ghost	7	13	1 s	7.0	same type, ×1.2
Zen Headbutt	Psychic	11	9	1 s	11.0

Charged attacks

Move	Type	Power	Energy cost	Time	Power / s
Dark Pulse	Dark	80	50	3 s	26.7
Ominous Wind	Ghost	55	33	2.5 s	22.0	same type, ×1.2
Shadow Ball	Ghost	100	50	3 s	33.3	same type, ×1.2

Yamask weaknesses and resistances

Damage multipliers for each attack type against Ghost. Pokémon GO uses ×1.6 for super effective and ×0.625 for not very effective, multiplied for two types.

Attack type	Damage
Dark	×1.6
Ghost	×1.6
Fighting	×0.39
Normal	×0.39
Bug	×0.625
Poison	×0.625

Yamask CP calculator

Level Attack IV Defense IV HP IV

CP 982 · HP 103

← #561 Sigilyph  ·  #563 Cofagrigus →  ·  All Pokémon in Pokémon GO

Sources: stats, moves, evolution costs and the CP multiplier for each level are from the Pokémon GO game master as published by PokeMiners (commit 8e227be, data of 28 August 2026). Which Pokémon are in the game: pogoapi.net (list of 31 January 2026). CP = ⌊(Attack+IV) × √(Defense+IV) × √(Stamina+IV) × CPM² / 10⌋, checked against pogoapi.net’s max CP table for 888 Pokémon. Raid catch levels and the 10/10/10 floor are players’ measurements; they are not in the game data. Pokémon and Pokémon GO are trademarks of their owners; this page is not affiliated with or endorsed by Niantic, Scopely, Nintendo, Creatures, GAME FREAK or The Pokémon Company.