#069 Unova / #563 National
Species classification: Coffin Pokemon
Ability: Mummy – If user makes contact with opponent or vice versa, the opponent's ability will change to Mummy for the duration of the battle
Dream World ability: Same
Location found (Black/White): Relic Castle (in Resort Desert area)
Wild hold items: Spell Tag (rare)
Egg groups: Mineral, Indeterminate
Capture rate: 90
Gender ratio: 50/50
Experience at lvl 100: 1,000,000
Base stats: 58 HP / 50 Atk / 145 Def / 95 SAtk / 105 SDef / 30 Spd / 483 Total
Effort values: 2 Defense
Evolution family: Yamask > Cofagrigus at level 34
Yamask and Cofagrigus are the only two pure Ghost types introduced in Black and White, and they're also the only two Pokemon with the new Mummy ability. Any time the user makes contact with an opponent either by hitting or being hit with a contact move, the opponent's Ability changes to Mummy for the duration of the battle, effectively neutralizing its own ability. Also worth noting, Cofagrigus not only has the highest defense of any Ghost-type to date, but it has the highest defense of any Unova Pokemon. Its speed is dismal though, so it might be worth considering a Trick Room (TM92) moveset to turn that to your advantage.
Design-wise, Yamask and Cofagrigus are two of our absolute favorites this generation. Both have two faces – which one are you supposed to look at? Cofagrigus looks like an Egyptian sarcophagus, and he's the perfect mix of creepy and cute. His favorite snacks are humans and gold nuggets. And even though Yamask is the more diminutive pre-evolution form, his Pokedex entry is one of the creepiest we've ever read.