Character is made from Count Marzo body, an E. Honda head, Chief Carnivous chestplate, a World war Hulk helmet and weapons from Storm Shadow Sigma 6.
Yamashito Aoki was a samurai in need of a purpose in a peaceful 17th century Japan. The Scorceress, sensing an evil stealth force (who turned out to be Ninjor) summoned up enough power to contact and convince Yamashito to accompany her back to Eternia to battle Ninjor the evil henchman of Skeletor. Yamashito thus became Sensei the Eternian Samurai.