Kar-Du, The Half-Dragon

+2: Put a 4/4 red and black Dragon creature token flying onto the battlefeild
-3: Until end of turn Kar-Du, the Half-Dragon becomes an 8/8 red and Black Dragon with Flying and Indestructible until end of turn
-8: You get and Emblem that says "Dragons creatures you control get +3/+3 and double strike"