He is a sorcerer and necromancer and a possible demon who can direct spirits and raise and control the dead.
Centuries ago Suma-Ket arrived to Atlantis as a savior, assisting the Atlanteans in defeating the Faceless Ones. Having witnessed Suma-Ket’s powers in battle they named him King. However he sooned developed into an evil tyrant. The Atlanteans worshiped him in fear of retribution. With Lord Neptune’s help they were able to banish him and his followers into mystical prison.