Widowclaimer

Lurk {1}{b} (If you mill this card, mill it into exile. When you do, cast it for its lurk cost or put it into your graveyard.)

Delirium — When this creature enters, if there
are four or more card types among cards in your
graveyard, you may destroy target non-Zombie
creature. If you do, create a 3/2 black Zombie
creature token with afflict 3.

Afflict 3