Volcanic Torrent

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.

Cascada.
La Catarata volcánica hace X puntos de daño a cada criatura y planeswalker que controlan tus oponentes, donde X es la cantidad de hechizos que lanzaste este turno.