Yuuya is hurrying to help the wounded Kurosaki when Ed appears before him! Ed believes that strength is the true mark of a Duel, and to prove with his own power that Yuuya and Yuushou are wrong about their "entertainment duels," he commences a Duel. Yuuya is shaken by seeing Ed like that, but, wanting to know his true intentions, he shakes off the inhibitors on Yuuto and throws himself into battle...!
No, he probably ran off when 
I wasn't paying attention.