Rank-Up-Magic

"Rank-Up Magic" ( Rankuappu Majikku) is a series of Spell Cards from the Yu-Gi-Oh! ZEXAL anime. Their effects allow one to Rank-Up an Xyz Monster through Chaos Xyz Evolution. An Xyz Monster of one Rank higher than the target is Special Summoned from the Extra Deck and the target Xyz Monster and its Xyz Materials become Xyz Materials on the newly Summoned monster.