How about random selection , 1 attack each, highest % destruction wins if stars are tied, you get to bet a certain sum of de, elix and gold based on level...winner takes all...6 hrs to complete. Does not affect heroes or anything else being available for clan wars.
Very similar to duel feature in new clash game, but allow COC clashes to do something interesting between wars....also if wins could count for trophies it would appeal to pushers.

