Barafor, the Cursed King

Fealty (As you cast this card and during your
upkeep, you may have any number of creatures you control swear fealty to it by tapping them.)
Whenever a creature swears fealty to Barafor, it becomes a Zombie in addition to it's other types.
Whenever a creature dealt damage by a Zombie
you control dies, you may return it to the battlefield under your control. It becomes a
Zombie in addition to it's other types.