I think when searching for enemy clan the search should be based off of clan trophies, level, but also clan total stars. The clan total stars I think would be a great balance.
Problems i can see:
If one team has very few stars but a lot of wins it will be matched up against some one with very few wins and little stars. [fixed] in this case balance it with wins as well. (don't match up with wins all the time though because wins and stars are 2 very different things.)
Some people are opted out so would they count?[fixed] only people opted in or the people in the war at that time would be averaged.
Any other problems you see please post.

