I think I was on level 11; it was one of those "omp is it over? oh wow only two people are left x.x;" kind of things.

I think mostly I had ashe run around as far away as possible to cure people, and I threw a bunch of items like water motes and stuff. Of course, if you haven't fought any battles or managed to pick up those, that won't do you much good. But definitely see if you have any useful items you could toss and hurt a bunch of them at once.