Ire Shaman can't be blocked except by two or more creatures.
Megamorph
(You may cast this card face down as a 2/2 creature for 3. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Ire Shaman is turned face up, exile the two card of your library. Until end of turn, you may play that card.
Locations
