Felwood Assassin

Morph {b}{g} (You may cast this card face down as
a 2/2 creature for {3}. Turn it face up any time for its
morph cost.)
Augury {2}{b}{g}, {t} ({2}{b}{g}, {t}: Turn this card
face up, then turn it face down. Activate this ability
only once each turn.)
When Felwood Assassin is turned face up,
destroy target non-black, non-elf creature an
opponent controls.