Chaze is just over-loaded to the core. Yes, there are counters, but zMaul had counters, and that's how we ended up with 2 teams being viable in arena for a while. Just because something can be countered, doesn't mean that they're not OP.
For example, imagine there's a character who instantly kills all enemies at the start of the match. Just because there also, hypothetically, a few characters who stop that effect, doesn't mean the first character isn't OP. It's still forcing every team to use either the OP toon or one of its counters. If you don't want to use any of those characters or they don't fit into your squad, sucks to be you.
