Sun Wukong, Redeemed

+2: You get an emblem which says "creatures you control have menace"
X: Pay X, Sun Wukong, Redeemed gains that many loyalty counters and becomes an X/X creature with haste and menace until end of turn
-X: Sun Wukong, Redeemed becomes a creature with haste and trample with power and toughness equal to twice X. Exile it at the end of your combat step