Xyxx, the Resonator

Vigilance, Ward {1}

Enrage — When Xyxx, the Resonator takes damage, put that many +1/+1 counters on it. (It must survive the damage to receive the counters.)

{2}{t}: When you cast an instant or sorcery that targets a single creature an opponent controls this turn, you may remove X +1/+1 counters from Xyxx. If you do, copy that spell. You may choose a new target for the copy.