Blood for Power

This card cannot be sacrificed.
As an additional cost to cast this spell, pay an
amount of life no less than 5. Then place that
many minus 3 Pact counters on this card. At the beginning of your end step, exile the top card of
your library face down and place a Pact counter
on this card.
At the beginning of your draw step, draw a
number of cards equal to the number of Pact
Counters on this card, then lose that much life.