Bind to Secrecy

Choose one — •Countertarget noncreature spell. • Conjure a duplicate of target creature card in an opponent's graveyard into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." If there are five or more mana values among cards in your graveyard, draft a card from Bind to Secrecy's spellbook.