Magic The Gathering Cards of types 'Skeleton' and 'Horror'

Wretched Bonemass's power and toughness are each equal to the total power of the exiled cards used to craft it. This creature has flying as long as an exiled card used to craft it has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, and vigilance.

Vigilance, menace Descend 8 - {4}{U}{B}: Return this card from your graveyard to the battlefield with a finality counter on it. Activate only if there are eight or more permanent cards in your graveyard and only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.)

Menace Whenever this creature enters or attacks, you may mill two cards. (You may put the top two cards of your library into your graveyard.)