Kulgarok - Originally the first Rex of Axios, Kulgarok was forced to kill another orc to receive Earth Elementalism. After this percieved betrayal, and losing the Rexdom to Drokon'Ugluk, he became a dark shaman who only sought vengeance against the lesser earth spirit Gardholog, and the many Spirits who had slain uruk after Orgon's proliferation. As a dark shaman, he only wielded this one Spirit, still holding respect and reverence for others, and carving the path toward orcish Xionism alongside the other Ish'urkal. He loathed their greed and obsession with power, and so while many Ish'urkal succame to Ixli and joined the Moz, he and a few other dark shamans became Ulua'mirzgai, Spirit Slavers of Leyd who sought to condense the power of the Spirits and make it mortal, rather then to be absorbed and corrupted by it.
Kulgarok, having eaten and later imprisoning Gardholog arguably cements him as the strongest Earth shaman (I see you Ross), having raised a mountain out of the ocean to form Devirad, the home of Xionism alongside Kurag. Gardholog was the primary Earth spirit many elementalists pacted to, and so the strength they poured into this betrayer spirit was given to him. Kulgarok lived for centuries, though inexplicably left the mortal realm to aimlessly seek truth within the Spiritual, his end fate unknown. While his body may be gone, The False Rex, The Truthseeker's legacy still remains.
Kulgarok would probably sit somewhere between lesser and greater, having performed great feats like Kharak, but his morality and "honor" is skewed by the Spirits slaughtering countless of his kin. I can always show up when he needs to be RPed, but if you just google, look at the wiki or check the forums more information on him will come up.