it's a kitbash, head from Hasslefree with greenstuff cowl and Othamrk standard as skull hat, body from Oathmark goblins, leaft arm with severed head from Victrix I think. The dangly bits on the staff stre from Victrix vikings, i will find some WIP pics and post them later
not great pics I am afraid, bit blurry, but give an idea I think of the construction