I'm shocked there's dudes in the comments were expecting some actual intense fight, its been established the only thing this guy has is his superpower that improves with loyalty and is shit at just about everything else. Meanwhile MC got the same superpower and is actually competent at other things.
It was gonna be a pretty one sided fight, and dudes wondering why he didn't just kill the guy who surrendered. Pretty sure it would've counted as straight up murder in the eyes of nobles. But hey challenging someone to a sacred duel only to surrender and piss himself is a good way to kill a fair amount of political power he had.