Earthbender

A character design for Avatar the Last Airbender. Basically the story goes that this earth bender was experimented on by the Fire Nation in their efforts to understand the properties of bending. They wanted to see what limbs/senses were needed in order to successfully bend elements. Their experiments made him stronger and eventually he was able to escape his captors. He uses earth materials nearby in order to create substitute arms for the ones he lost. Don't have a name for him though.