Imhotep, Plaguebound

Whenever Imhotep, Plaguebound
kills a creature an opponent controls, put a resurrection counter on him.
Imhotep gets +1/+1 for each resurrection
counter on him.
At the beginning of your upkeep,
if Imhotep has two or more resurrection
counters on him, all creatures your
opponents control get a -1/-1 counter.
If a creature dies this way, put a resurrection
counter on Imhotep.