Liliana Dreadhorde Master

+2: Amass 2.(Put two +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)
-3: Create three 2/2 black Zombie token creatures.
-10: Amass x, Create x 2/2 black Zombie token creatures, and put a -1/-1 counter on x target creatures.X is equal to the number of zombies you control