Loathsome Dung Eater

Menace, Deathtouch
Whenever a creature an opponent
controls dies, you
may exile it with a Pox counter.
You may cast creature spells exiled
with Pox counters
by paying 3 life and spending mana
as though it were any color.
"I can kill you and defile your corpse.
Then the pox will truly be your own."