Yamask

#561

#562  -  Yamask

#563

#562	Yamask
Types Ghost	Generation   V
Abilities Ability 1 Mummy
Rarity Tier   Rare	Catch rate   190/255 (24.84%)
Base stats HP 38 Atk 30 Def 85 Sp.Atk 55 Sp.Def 65 Spd 30 Base-stat total: 303
EV Yield HP 0 Atk 0 Def 1 Sp.Atk 0 Sp.Def 0 Spd 0 EV-yield total: 1
Base Experience   61	Gender Ratio     50%     50%
Height   0.51m	Weight   1.5kg

Yamask is a Ghost type Pokémon.

It evolves into Cofagrigus upon reaching level 34.

Obtainability

Spawn Information Temporarily Unavailable

Since 17 July 2026, the public Spawn Dump Page has been temporarily disabled and will remain unavailable for an indefinite period.

Because the Pokémon Revolution Online Wiki relied on this data source, it is currently unable to display spawn locations.

For the time being, please rely on the in-game spawn information instead. Spawn information will return once a public data source becomes available again.

Excavation

Site	Levels	Time period	Required discovery points	Rarity
Haunted Site	15-25	N/A	2,000	Rare

Bosses

• Possible reward from Morty

Moves

Level Up

Level	Moves	Type	Category	Base Power	Accuracy	PP
1	Astonish	Ghost	Physical	30	100	15
1	Protect	Normal	Status	—	—	10
5	Disable	Normal	Status	—	100	20
9	Haze	Ice	Status	—	—	30
13	Night Shade	Ghost	Special	—	100	15
17	Hex	Ghost	Special	65	100	10
21	Will-O-Wisp	Fire	Status	—	85	15
25	Ominous Wind	Ghost	Special	60	100	5
29	Curse	Ghost	Status	—	—	10
33	Guard Split	Psychic	Status	—	—	10
33	Power Split	Psychic	Status	—	—	10
37	Shadow Ball	Ghost	Special	80	100	15
41	Grudge	Ghost	Status	—	—	5
45	Mean Look	Normal	Status	—	—	5
49	Destiny Bond	Ghost	Status	—	—	5
Emboldened moves denote this Pokémon avails from a STAB bonus for it. Italicized moves are broken; see their individual pages for more information. All moves subsumed on this list are relearnable via the Move Relearners if lost.

Egg Moves

Move	Type	Category	Base Power	Accuracy	PP
Ally Switch	Psychic	Status	—	—	15
Crafty Shield	Fairy	Status	—	—	10
Disable	Normal	Status	—	100	20
Endure	Normal	Status	—	—	10
Fake Tears	Dark	Status	—	100	20
Heal Block	Psychic	Status	—	100	15
Imprison	Psychic	Status	—	—	10
Memento	Dark	Status	—	100	10
Nasty Plot	Dark	Status	—	—	20
Nightmare	Ghost	Status	—	100	15
Toxic Spikes	Poison	Status	—	—	20
Emboldened moves denote that this Pokémon avails from a STAB bonus for it. Italicized moves are broken; see their individual pages for more information. For more information on egg-move-tutors, refer to: Egg Moves.

TMs

TM		Moves	Type	Category	Base Power	Accuracy	PP
	TM06	Toxic	Poison	Status	—	90	10
	TM29	Psychic	Psychic	Special	90	100	10
	TM32	Double Team	Normal	Status	—	—	15
	TM42	Dream Eater	Psychic	Special	100	100	15
	TM44	Rest	Psychic	Status	—	—	10
	TM50	Substitute	Normal	Status	—	—	16
	TM54	Calm Mind	Psychic	Status	—	—	20
	TM60	Hidden Power	Normal	Special	60	100	15
	TM67	Protect	Normal	Status	—	—	10
	TM68	Rain Dance	Water	Status	—	—	5
	TM76	Dark Pulse	Dark	Special	80	100	15
	TM80	Shadow Ball	Ghost	Special	80	100	15
	TM92	Facade	Normal	Physical	70	100	20
	TM96	Thief	Dark	Physical	60	100	25
	TM111	Will-O-Wisp	Fire	Status	—	85	15
	TM130	Return	Normal	Physical	—	100	20
	TM138	Sleep Talk	Normal	Status	—	—	10
	TM148	Trick Room	Psychic	Status	—	—	5
	HM05	Flash	Normal	Status	—	100	20
Emboldened moves denote that this Pokémon avails from a STAB bonus for it. Italicized moves are broken; see their individual pages for more information. Refer to TMs and HMs for information on each move's obtainability.

TM Tutors

Move	Type	Category	Base Power	Accuracy	PP
Energy Ball	Grass	Special	90	100	10
Frustration	Normal	Physical	—	100	20
Infestation	Bug	Special	20	100	20
Psych Up	Normal	Status	—	—	10
Trick Room	Psychic	Status	—	—	5
Emboldened moves denote that this Pokémon avails from a STAB bonus for it. Italicized moves are broken; see their individual pages for more information. Read to the move tutors article for tutorship information for all moves hereon.

Move Tutors

Move	Type	Category	Base Power	Accuracy	PP
Iron Defense	Steel	Status	—	—	15
Knock Off	Dark	Physical	65	100	25
Magic Coat	Psychic	Status	—	—	15
Pain Split	Normal	Status	—	—	20
Role Play	Psychic	Status	—	—	15
Shock Wave	Electric	Special	60	—	20
Skill Swap	Psychic	Status	—	—	10
Snore	Normal	Special	50	100	15
Trick	Psychic	Status	—	100	10
Wonder Room	Psychic	Status	—	—	10
Zen Headbutt	Psychic	Physical	80	90	15
Emboldened moves denote that this Pokémon avails from a STAB bonus for it. Italicized moves are broken; see their individual pages for more information. Read to the move tutors article for tutorship information for all moves hereon.

Type Effectiveness

Under normal battle conditions, this Pokémon is:
2× Weak to	Dark Ghost
1× Neutral to	Dragon Electric Fairy Fire Flying Grass Ground Ice Psychic Rock Steel Water
½× Resistant to	Bug Poison
0× Immune to	Fighting Normal

Special Counterparts

• Shiny Yamask
  Shiny Yamask