Catman

As an additional cost to this spell, exile one
creature under your control.
When Catman enters the battlefield, place one
DPH counter on this card. During your upkeep,
you may place another.
During each end step, the player must put the
top card of their library into exile X times,
where X is half the amount of DPH counters
rounded down.
This creature has power and toughness equal to
the amount of creatures in exile.