I'm looking at making an Alchemist specialising in Bestial Mutagen (yes, I know it's subpar, leave it be), and I noticed it's a Polymorph effect, not a morph effect.
So that means that you can neither get multiple dice on these attacks (via Handwraps), nor get a Str bonus to damage? Since only circumstance and status bonuses are allowed?
No, that passus only applies for battle forms. The mutagen doesn't give you that. Only a normal polymorph effect. So strength bonus and wraps are no problem.