Signature Spells is a rare Enchantment card from Alchemy Horizons: Baldur's Gate (HBG), collector number 37.
When Signature Spells enters the battlefield, seek two instant and/or sorcery cards with mana value 3, then exile them. At the beginning of your upkeep, you may copy a card exiled with Signature Spells. You may cast the copy without paying its mana cost.