Lancelot, the Heroic

+2: Creatures you control gain +X/+X where X is the difference between Lancelot, the Heroic's current and starting loyalty.
-4: Exile target permanent. If you exile a nonland, nontoken card this way, gain life equal to that card's converted mana cost.
-9: You get an emblem with "Whenever a creature you don't control attacks you, gain X life where X is twice that creature's power."