Unovan Yamask Raid Guide

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Hey Trainers,

Unovan Yamask will be a Ghost type T1 raid boss during the Halloween 2021 event. Unovan Yamask evolves into Cofagrigus.


Yamask shouldn’t be that difficult to beat, since it’s only a T1 raid. Practically any player can beat it with decently levelled Pokémon. It does have a little bulk, so try not to use any types Yamask resists.

It’s a Ghost type, so it’s weak to Dark and Ghost types. It’s resistant to Bug and Poison types, and it has 2 large resistances being Normal and Fighting.

Top Counters

Shadows and Megas won’t be listed. They’re not necessary to take down a T1 in good time, and Shadow Pokémon are incredibly expensive to power up. However, if you have any of the listed Pokémon as shadow forms, they’re of course better.

# Pokémon Fast Move Charge Move Time to win Deaths
1. Darkrai Snarl Dark Dark Pulse Dark 12.41s 0.00
2. Deoxys (Attack) Zen Headbutt Psychic Dark Pulse Dark 12.43s 0.00
3. Chandelure Hex Ghost Shadow Ball Ghost 12.97s 0.00
4. Gengar Lick Ghost Shadow Ball Ghost 12.98s 0.00
5. Hoopa (Unbound) Confusion Psychic Dark Pulse Dark 14.81s 0.00
6. Haunter Shadow Claw Ghost Shadow Ball Ghost 15.09s 0.00
7. Banette Shadow Claw Ghost Shadow Ball Ghost 15.14s 0.00
8. Hoopa (Confined) Confusion Psychic Shadow Ball Ghost 15.42s 0.00
9. Mewtwo Confusion Psychic Shadow Ball Ghost 15.66s 0.00
10. Hydreigon Bite Dark Brutal Swing Dark 15.78s 0.00
11. Giratina (Origin) Shadow Claw Ghost Shadow Ball Ghost 15.72s 0.00
12. Zarude Bite Dark Dark Pulse Dark 16.33s 0.00
13. Alakazam Confusion Psychic Shadow Ball Ghost 16.70s 0.00
14. Weavile Feint Attack Dark Foul Play Dark 16.84s 0.00
15. Trevenant Shadow Claw Ghost Shadow Ball Ghost 17.05s 0.00
16. Yveltal Snarl Dark Dark Pulse Dark 17.09s 0.00
17. Absol Snarl Dark Dark Pulse Dark 17.04s 0.00
18. Houndoom Snarl Dark Foul Play Dark 17.07s 0.00

Stats and Catch CP

Yamask Ghost
Max CP at Level 40 982 | Max CP at Level 50 1110
ATK 95
DEF 141
HP 116
Weak to Strong Against
Dark Ghost Bug Poison Normalx2 Fightingx2


Yamask is boosted by Fog weather.

  • CP range on catch (L20): 516 – 561
  • Weather Boosted CP range on catch (L25): 646 – 701


Fast Moves Charge Moves
  • Astonish Ghost
  • Zen Headbutt Psychic
  • Ominous Wind Ghost
  • Dark Pulse Dark
  • Shadow Ball Ghost
Dark types utterly wall Yamask, so they’re great options.


Yamask only comes around for a portion of the year, and thanks to Cofagrigus getting Shadow Claw recently it has skyrocketed into PvP relevancy. Best to get a good one while you can, and try to get as much XL candy for Ultra League as possible.

Stay safe, trainers!

Author & tags

I enjoy drinking coffee and going for walks if I can muster the energy. I mostly spend time shiny hunting in mainline Pokémon games. My favourite Pokémon is Falinks, and I'm still in disbelief that it was added to GO like a year or two early. Empoleon is a close second, though.

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