Y' wanna know what I thought before I saw the recent chapter spoilers on the thread? I thought that maybe Yuusei would win, but before he crumbles into dust, Kiryuu would stab/lethally injure him somehow. That, coupled with injuries from the duel would overwhelm him, and, when he stumbles into the giant tower and places the card into the switch, he'd faint/collapse and die and the tower would be buried under the ground. And Crow and Ushio and Rua/Luka would try their best to get to him but they don't get there in time and they futilely try to dig him out. BAWWWWWWW.