[That person, for some reason won't fight seriously.
Even though he knows sword techniques and magic, he'll limit himself to just fighting spirit and barehanded techniques whenever possible. Especially when he knows his opponents skills. Fighting spirit and barehanded techniques, if these aren't enough he'll use magic.
He'll try to win as efficiently as possible, but in unfamiliar situations...
Seeing a technique for the first time, he will try to study it. That is probably his weak point.]