Tyrion, Immortal Scorned

+2: Until the end phase, Tyrion becomes a 5/5 Zombie with Lifelink and Indestructible and is still a Planeswalker. Tyrion fights target creature.
-X: Deal X damage to target creature or player. You gain life twice the amount of damage dealt this way.
-8: You gain an emblem with "Creatures you control have Lifelink and Undying. If you gain life, you gain double that amount instead."