Oil Bombardment

If you paid life to cast this spell, create half as many counters rounded down.
Create {x} number of -1/-1 counters on all creature permanents on target opponents battlefield. for the
rest of the turn, any creature spells sent to the
graveyard from the battlefield perpetually gain 1 "Compleation" counter.
"Get to cover, a single drop of the stuff is enough to convert you!"