Thorkells' weakness
Thorkells weakness was being hit in the jaw, which obviously makes sense because any human if you just hit them on the chin hard enough it will knock them out or at least rattle their brain. But I was thinking that thorkell is so strong that it seems odd for him to even have such a glaring weakness, someone of thorfinns size even with a kick shouldn't knock someone of his size out.
Im not sure if other people also think this, but I think originally thorkell did not have this weakness, but when thors knocked him out, thors literally shattered thorkells jaw, and thats why its such a prominent weakness, is because of thors. In the episode when thorkell gets knocked out he talks about how thorfinn didn't learn anything from thors, but he won because of thors or because of what thors did to thorkell so its kinda cool