Franziska, Whipping Adversary

Franziska, Whipping Adversary enters the battlefield with X judgement counters.
Once per turn, when opponent casts a spell on your turn, deal X damage to any target, where X is the number of judgement counters on Franziska, Whipping Adversary.
"...I can't stand to listen to any more of this foolishness!" - Franziska von Karma