Very specific question regarding the Captain Marvel fight in 9.3.4
I went into the fight using Enchantress(7 star, R1, unduped), and I noticed that with every single hit, she does around 17K bonus damage, which makes her hit like an absolute truck for how underdeveloped she is on my roster. However, this seems to only happen in this fight, and not in any other fight in the quest. What causes this to happen?