Boba Fett

+1: put a bounty counter on target enemy creature. (when that creature dies, you gain 1 life.)
-1: remove X bounty counters off of target creature: Destroy that creature, where X is that creature's toughness.
-5: kill Boba Fett: Create a 3/3 indestructable, Hexproof Boba Fett creature token.