Carter, Last of the Order

0: Carter, Last of the Order becomes a human with Hexproof and +8/+5 that is still a planeswalker
+1: Grant all other creatures on your side of the field +1/+1
-10: Carter, Last of the Order becomes a Minor Angel with Indestructible, Hexproof, and +12/+7 that will exiled itself in 4 turns, can't be negated.