Lexi, Lady of the Storm

First strike
Instant and sorcery spells in your graveyard
have flashback. Their flashback cost is equal to
their mana cost.

{u}{r}, {t}: After activating this ability, the next instant or sorcery spell you cast this turn has storm.
(When you cast that spell, copy it for each spell
cast before it this turn. You may choose new targets for the copies.)