At the beginning of your upkeep, instant and sorcery cards in your hand perpetually gain "This spell costs less to cast." Sacrifice this enchantment: Conjure (A conjured card is added to the game.) a card of your choice from Charged Conjuration's spellbook into your hand. Activate only as a sorcery. Charged Conjuration's spellbook includes the following cards: • Empty the Warrens • Galvanic Relay • Grapeshot