Help with boss rush
I'm doing the boss rush for first time with all maxed four stars and I'm at the invisible woman with 20% left on her. I have no revives or potions and my team is scarlet witch, mephisto, doc Ock, quake, and Angela. I'm just sitting in the quest and I'm not going to go out unless I finish it. Anybody have suggestions on what to do? I have no units.