Ok so I haven't thought this build through fully yet, but is an Unchained Rogue using Claws as their primary weapon for DPS viable? My GM has explicitly allowed me to take the cat folk talents with unchained rogue. Also house ruling that Aspect of the beast stacks with Imp Natural attack and cat folk examplar (for 1d8 damage). Also said if I want I can still attack with my claws like natural weapons using claw blades, which I would greatly prefer for the feeling of using natural weapons and not just making another twf character, and I don't know how else I could make claw damage keep up. Even then though I'm not sure it's viable when my party will be getting (hypothetically) three or four iterative attacks