Rattleclaw Mystic (PKTK) #144 [EN/F]

{1}{G} · Creature — Human Shaman · 2/1 · {T}: Add {G}, {U}, or {R}. Morph {2} (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 this creature is turned face up, add {G}{U}{R}. · Illustrated by Min Yum · Khans of Tarkir Promos #144 · EDHREC rank 5974 · Magic: The Gathering, MTG