Thanks for the feedback!
Yeah, the boss is a bit tough, it'll certainly get almost everyone on the first encounter. I think due to it's damage and slightly small arena, I'll lower it for the update for sure. As for the parry, you're right that it might not feel effective, since there's a % chance that they'll be stunned or they'll actually parry your counter attack, I'll need to see about making it less frequent. The boss also preforms normal attacks that are parryable, but it sounds like I'll need to reduce the frequence of their big attacks.
Thanks for playing through it!