Ainok Survivalist is a common Creature — Dog Shaman card from Masters 25 (A25), collector number 157. Current market price: $0.26 (foil $0.27), TCGplayer market prices via Scryfall.
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.