Wxza of true power

Flying, Menace
X payed in the ignite cost was equal to the power of
Wxza of pure power destroy all creatures with 8
or less power if X was less then Wxza of
pure powers power put x +1/+1 counter on him.
When Wxza of pure power is tapped destroy target
creature with less power then Wxza.
When Wxza dies destroy all creatures with
more power then him