Curator of Cadavers

Whenever Curator of Cadavers deals combat damage to a player, you may return target creature card from that player's graveyard to the battlefield under your control. It is a black Zombie in addition to its other colors and types.
Imperialism - {b}{b}{b}, Sacrifice a creature: Target creature gets -3/-3 until end of turn. Activate this ability only if you control more creatures
than any other player.