Skinshifter [Magic 2012]

{G}: Choose one —
• Until end of turn, Skinshifter becomes a Rhino with base power and toughness 4/4 and gains trample. Activate this ability only once each turn.
• Until end of turn, Skinshifter becomes a Bird with base power and toughness 2/2 and gains flying. Activate this ability only once each turn.
• Until end of turn, Skinshifter becomes a Plant with base power and toughness 0/8. Activate this ability only once each turn.