Hi
Finally I came to the conclusion not to play arena (normal, ranked arena and ...) because the developer has preferentially overpowered some classes (Titan, berserker and ...) or CP based (ranked arena mode) create unfair battle.
Instead of the critical rate and the critical damage being the effective factors in the battle, the developer's preferences in empowering some classes have taken the place of everything.

I'm sorry for "PEARL ABYSS" but this is the truth

Yeah berserker needs Nerf is super unfair class.