Summoners. We are aware of issues with Alliance Wars Enlistment/Matchmaking. We are exploring the cause of this issue and possible solutions.
I have always seen dexterity buff as one of the worst part of fighting mystic champs in AW. That makes some fights almost impossible sometimes, specially against Dormammu that can kill you easily without even touching you. My suggestion is to make that dexterity buff in a way that prevents the refreshing every time we use dexterity. MD will still be a pain in the ass but at least we could evade the special attacks without dieing form the block hits hoping for the **** use his special.