Yeah saying random attacks wasn't right. They're just doing something I haven't seen others do. I get frustrated that I keep dropping my own combos and not blocking.
I don't really know the other character's attacks but I think it is Litchi's B, Bang's doing 5A 3C over and over, and Ragna doing 5B and inferno divider spam. I try to get close and I always get beat out. Eventually that damage starts to add up and I lose.