Reaver of the Charred Wastes

Trample, haste
Transfigure {1}{b}{b} ({1}{b}{b}, Sacrifice this
creature: Search your library for a creature card with
the same mana value as this creature, put that card
onto the battlefield, then shuffle. Transfigure only as a sorcery.)
Whenever this creature enters the battlefield or attacks, up to five target creatures each get -1/-1
until end of turn.