Duststorm Ravagers

At the beginning of your end step, if you control a Desert or Wastes, flip Duststorm Ravagers face down.
Morph {r}{c} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Duststorm Ravager is flipped face up, it gains first strike until the end of the turn.