Obelisk, The Tormentor

When this card enters the battlefield, sacrifice it
unless you sacrifice two other creatures. If this
card enters the battlefield and it was not cast
from your hand, sacrifice it at the beginning of
the next end step.
Trample, Vigilance, Hexproof
Sacrifice another creature, Put +1/+1 counters
on "Obelisk The Tormentor" equal to that
creatures power.