Turn to Walrus

Buyback - {g}{u}{r}, Discard a card. (You may pay {g}{u}{r} and discard a card in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Until end of turn, target creature loses all abilities and becomes a blue Walrus with base power and toughness 3/3. You may have it gain first strike until end of turn.