Well as he said he did stab the lungs but I guess between life and death that man had enough time to stand up again Hello DEAR
he wanted the guy to suffer right? he gave him a blow that would kill him slowly and in a painful way, and also he wanted to see if his grandchildren wanted to be the ones to really finish him off. it was like a courtesy to the village.
i’m surprised Vikir didn’t off the shaman completely and now has to deal with the the consequences ^^;