Otherworldly Tome

{w/b}{w/b} Suspend 6, Indestructible & Limbo
Instant and Sorcery spells you control have Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves)
Final Hour- If you have 10 or less life the Buyback is now {2} & it gains Split Second.