If Halsin indeed turns out to be a werebear, he might also get a special attack.
Why werebear? He is a druid, he is supposed to be able to do that anyway.
In the Panel From Hell, during the sex scene. Halsin turns into a bear while being "excited". He mentions the beast taking control. That usually happens if you have the "Were" trait.
I know where this is coming from, it just does not make sense to give Halsin that background when he is already supposed to be able to turn into a bear because of his class. Especially as werebears in D&D are also good and thus there wouldn't even be a conflict with his normal personality.
This would only make sense when they scraoped and copy pasted Helia because of Halsin thirst, which imo would be bad from Larian.