Alright after trying it for the first time, here are my thoughts.
1. Zerk is wayyy too mobile. The whirlwind and the extra dodges make him really hard to hit which sucks. He also has extra health which isn't too fair.
2. Whirlwind is OP. You can come into a group and demolish everybody, while going at lightining speed. You don't have to worry about health because you have 1 extra health point.
Balancing suggestions: allow whirlwind to be blocked, reduce health points of zerk, make s/he slower.
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