Khans of Tarkir

Howl of the Horde

When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Raid — If you attacked with a creature this turn, when you cast your next instant or sorcery spell this turn, copy that spell an additional time. You may choose new targets for the copy.

When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Raid — If you attacked this turn, when you next cast an instant or sorcery spell this turn, copy that spell an additional time. You may choose new targets for the copy.