Lifestream's Blessing

Draw X cards, where X is the greatest power among creatures you controlled as you cast this spell. If this spell was cast from exile, you gain twice X life.
Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

"We came to tell you our memories. Come, planet! Show us your answer!" —Cloud Strife