Glittery Girl Fight! Things went surprisingly well for my level 100 5/5/3 Jubilee. I was doing a huge amount of damage on each match, and I couldn’t figure out why. After refreshing my memory on what Jubilee does, I realized her lower HP actually helped the fight move along more briskly - she was slapping out an extra thousand damage on matches from her passive until her HP was greater than Dazzler’s, by which time the match was nearly over.
In a mildly amusing/mildly boring fashion, neither Jubilee nor Dazzler managed to cast a single ability. Too busy dancing and dazzling, I guess!