She duels once alongside Tristan and Duke against , a member of , but is not very experienced.
At least you need to integrate it with paravirtualization.
But this is not always true.
Serenity only dueled once, in a three on one Duel with Tristan and Duke against during the Virtual Realm arc.
If that mechanism is worthwhile then it should go into the generic code and not into x86.
But since there is no such paravirtual interface currently and i am not sure whether it is a information leak from host if introducing such interface, so i didn't do it.