Should a player be able to cast a spell in the prep round(s) on himself which effects the area around him, so that at the beginning of the duel, because of the starting distance, his opponent is immediately in the area of effect of the spell?
Example: Control Temperature, or raise the temperature around you in the prep round to a very high level, and you are immune to heat. Your opponent, starting 15 feet away, is immediately caught in the heat and is not immune.
Discuss...