Merilineth, Rouriana Archmage

Each instant and sorcery card in your hand
without spellmorph has spellmorph. Its
spellmorph cost is equal to its mana cost reduced by {3}. (You may cast these cards face down as a 2/2 creature for {3}. Cast them any
time for their spellmorph cost.)
Morph—Reveal an instant or sorcery card
in your hand.