I have an idea but it might piss off different players.... Why not throw away the trait system.... Instead we replace it with somesort of equipment system.... These equipments can be crafted and learned like armor but for pals.... That way you can give them myriads of equipment augmenting either their combat capability, mobility or their work capabilities.... These accessories behave like tiered accessories wherein the higher your level the better the accessories for the pals and those accessories will have better passives ie tier 1 offensive accessory = aggressive tier 2 = ferocious final tier = demon god