Volcanic Torrent (0037) [Avatar: The Last Airbender Eternal]

Sorcery · {4}{R}

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Volcanic Torrent deals X damage to each creature and planeswalker your opponents control, where X is the number of spells you've cast this turn.

Avatar: The Last Airbender Eternal #37 · mythic