Mithrax is the winner in beyond light because we made and rip aramus stone at the end of the expansion which means he is not dead to be presumed emarius does not survive and also because varaks is not well like by the other elsenki and mithrax is way more respected by his species than varaks because he is realistic candidate left to lead the elsenki beacuse varaks does have much respect compared to him and he is completely sane and he is not delusional . He will keep varaks along as elder to help cement his authority and to say there is new rules of conduct coming to society and it involves not killing the competition if you don,t have to. Side note I think one of first decrees is that there will on how much ether he can self use he will style himself fist among equals.