When yi has his flashbacks, who is that Barbarian? he seems to be at Equal skill as Master Yi. and it seems like he Destroyed Ionia. Also, why would the doctor make Bodies with memories of the old Champions that are probably only known in this time as fairy tales from Story books.
The Barbarian seems very similar to 
... considering that Skins are not cannon, maybe he gets an "Robot Undead Destroyer of Ionia" Skin or something like that
... or maybe an "Oni"
He looked more like a warlord/samurai/shogun to me than a barbarian. http://3.bp.blogspot.com/-ZD1R4iJzJfc/TdFjLGJvpVI/AAAAAAAAA0I/llaejeNi0Dg/s320/Samurai.JPG https://s-media-cache-ak0.pinimg.com/736x/67/bf/ed/67bfed6ef663b0767048f0e7a0b8c9e6.jpg
