Necromancer

Whenever a creature dies create a corpse token.

Creatures you control have Undying.

{b}, {t}:Create a 3/3 Golem creature token with trample
and whenever you create a corpse token give me +1/+1 until end of turn.

{p/b}{p/b}{p/b}:Sacrifice a creature or corpse token: Destroy target creature.