Zarya, the Champion

{x}{u}: Prevent X damage dealt to any target.
Zarya, the Champion gets +1/+1 counters equal
to the damage prevented. Remove any counters
from Zarya, the Champion at your next endstep.
{t}{x}{r} Remove X +1/+1 counters from this
Card: Deal damage equal to the number of
counters removed this way.