Narset, Enlightened Exile
Legendary Creature — Human Monk
3 / 4
Creatures you control have prowess.
Whenever Narset, Enlightened Exile attacks, exile target noncreature, nonland card with mana value less than Narset's power from a graveyard and copy it. You may cast the copy without paying its mana cost.
If you don't want to cast the copy, you can choose not to; the copy ceases to exist the next time state-based actions are performed.