Ainok Survivalist (A25 157)

Creature — Dog Shaman • Mana cost: {1}{G} • Masters 25 • Common

Megamorph {1}{G} (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 this creature is turned face up, destroy target artifact or enchantment an opponent controls.

Illustrated by Craig J Spearing.