This is Yuto he is a XYZ summoner he might look like Yuya and you are right but Yuto is from a differt wrould where he use XYZ

his dragon is Dark Rebellion XYZ Dragon unlike Yuya he has Odd-eyes Pendulum Dragon and drak dragon is a monster where you have to summon him when you have a monster that is 2 and 4 on your feid you can detach 2 merterials from this card then target 1 face up monster your opponet controls and xyz dragon gets the atk but it is in have of it current atk and if it does this card gains that lost ATK.

Dark Rebllion XYZ Dragon is not a the only one

Yuto has a nother form for XYZ dragon named Dark Requiem XYZ Dragon and you can summon it with a level 3 and 5 monsters and you have Dark Anthrlion Dragon you can summon him when you have a level 2 and 7 monster or is you have a Pendulum and XYZ monster. when you fuse Odd eye dragon with Dark Rebellion you can get 3 new forms called Old-Eyes Raging Dragon, Odd Eye Rebellion Xyz Dragon and Odd Eyes Rebellion Dragon these happen when Yuto gave Yuya his XYZ dragon when he die.