Today i took my pretty new Claire into map 7 to test her and found a huge bug
if she has charges and hit the oppenent with a light or a medium she nullifies buffs
i assumed she can attack into unstoppable opponents like captain america iw but got countert every time i tried
talked to my alliance mates and they confirmed that this was possible until the last patch
here's a video fighting juggernaut in a duel:
https://youtu.be/Bq7ChZQud-4