Cotic The Wraith

: Cotic enters the battlefield with X loyalty counters on him where X is the amount of mana spent to cast him.
0: Creatures get -X/-X until end of turn where X is the amount of loyalty on Cotic. Put a loyalty counter on each black planeswalker you control.
-6: Create X black 2/2 zombie creature token where X is the difference between each opponents current life total and original.