Liliana, of the Seru

+2: Create two 2/3 black Zombie Warrior creature tokens with menace and "This creature enters the battlefield tapped."
-4: Search your library for up to two Zombie creature cards. Put one in your hand and the other on the battlefield. Then shuffle your library.
-12: You get an emblem with "Zombie creatures you control get +1/+1 and can't be blocked."