Ilyasaraka, Djinn Unleashed

Flying
Whenever a noncreature spell you control resolves during an opponent's turn, you get an experience counter.
{u}{r}{w}, {t}: Until end of turn, whenever you cast
a noncreature spell, Ilyasaraka, Djinn
Unleashed deals X damage to target creature or player, where X is the number of experience counters you have.