RadicalFuzz
Aspiring Fighter
My problem when using Grundy is that you can not dodge any interactable period.
If I'm gonna get hit by an IO anyway I just armor through it so I don't lose position. The WCC is your best friend, though you still take around 3/4 of the full damage (I think, haven't had consistent results). Depending on the recovery of the interactable and how far away they were you can sometimes get a good punish. The corner water IOs in Atlantis are almost useless against Grundy, WCC means they'll eat a full corner combo.