Spellweaving

3{u/r}: Exile target instant or sorcery from your graveyard. You may cast a copy of it until end of turn.
Malfunction--{2}{u}{r}, {t}: Exile target instant or sorcery from your graveyard. You may cast a copy of it without paying its mana cost by discarding a card. Activate this ability only if you have cast an instant or sorcery this turn.