Mach

Mach is a character appearing in the Yu-Gi-Oh! ZEXAL anime.

Biography
Upon entering a "Number" temple, Yuma is separated from Shark and the mysterious boy, Nasch who he saved earlier. After exploring the temple further, Yuma is confronted by Mach before he could grab the Sacred "Number" card that was contained in his temple. Mach then begins a Duel with Yuma with Shark's and Nasch's lives on the line.