Asuka R. Kreutz, Gearmaker

Chant - {5}: Discard target instant or sorcery with mana value X, reveal the top X cards of your library, then you may put target instant or sorcery with mana value X plus 1 or less into your hand, until end of turn that card gains storm, put the rest
of the cards revealed this way into your graveyard.

Whenever you cast your fourth spell each turn, you may return target instant or sorcery from your graveyard to your hand.