make the challenge appear everywhere (take out the limitations)
where it has u tele into the duel arena, set a few ints like duelX = absX, etc
remove the tele to duel arena part, also have it make some objects around them like a box if u don't want them to run, when the fight ends, have them not tele at all (so they stay where they were) and have the objects made deleted, not hard... but i prefer just having it at duel arena.... alot easier