Mask of the Dead

Equipped creature gets hexproof, and is a black
zombie in addition to its other colors and types.
Whenever equipped creature deals combat
damage to a player, you may cast a creature card
from that players graveyard this turn, and you
may spend mana of any type to pay its casting
cost. If you cast a creature from an opponent's
graveyard in this way, it becomes a black zombie
in addition to its other colors and types.
Equip: {6}
Equip a legendary creature you control: {3}