Improvisation is a good skill to have, but getting overconfident because of your experience could really end badly for you. Well, I won't lecture you, mister Cain, but please at least be aware. That chainsword is impressive, but it'll limit your options if you're disarmed. Hmmm... I'm not sure how much that would tell you, but if he is the only other person from your world, it could give you an idea. Garviel as he is now has gotten into serious duels in this town before, and he could have easily lost if the spar wasn't stopped because it was a friendly one. That's just an example, but yes, do keep in mind that Mayfield is an unpredictable place, so everyone in it could have unpredictable abilities.