Tazza

Tazza is a being who rules over a dimension at "the outer edge of infinity." Several adventurers have come to his domain, but for most of his existence he defeated all of them and kept their bodies in his "Hall of Heroes," separating them from their spirits to keep them preserved and imprisoned forever. In 1965, Doctor Strange came there on a lead he'd hoped would lead to his friend Clea. This lead was in fact a trap orchestrated by Dormammu of the Dark Dimension, who also told Tazza that Strange was coming to destroy him. Tazza fell for this ploy, and tried to kill Strange instead. Strange outwitted him however, defeating him in self-defense and freeing the captive adventurers.