Suggested by Batz
Shulk (Xenoblade Chronicles, first appearance of the franchise here), who made his first appearance here, is going up against The Percy Jackson universe. The match consists of three rounds.
Round 1: Shulk vs Percy in a one on one fight.
Round 2: Shulk vs Percy, Annabeth, and Jason. Shulk has Dunban and Riki for assistance.
Round 3: Shulk vs the Olympians in a test of endurance. He begins with the youngest and works his way up to Zeus. He has 15 minutes to rest between fights.
For Rounds 1 and 2, Shulk is equipped with the Monado II. For Round 3, he is equipped with the Monado III.