All stars uppers and montana can beat berzerk pretty consistent.
nellie and herman even wendell (not so much though),
aniki, mona, prince jr, desmond, jimmy spaighi, vito
all stars just gotta be careful with elvis and melanie combo since they match them with high power, but for spyke, robb cr spudd alexei and kang aren't bad solutions.
Spyke is usually banned, and elvis gets occasional ban, so you usually don't have to worry about this OP side coming in, but when it does happen, just make the adjustment.