Thanaklah

As an additional cost to cast this spell sacrifice
any number of creatures.
Thanaklah Enters the battlefield with X +1/+1
counters where X is the total power of the
sacrificed creatures.
Whenever a creature dies, if it was dealt damage
by Thanaklah this turn, put a number of +1/+1
counters on Thanaklah equal to that creatures
power.