A supremely powerful being of unknown origins, Ma Yuan appears as a Colossal yellow-scaled, four-armed reptil-ian humanoid clothed in a ragged loincloth and possessing a small triangular piece ol stone that has the ability to turn into any weapon the holder wishes, magic or otherwise. Ma Yuan's tyrannosaur-like head and spiked fin trigger a sense of instinctual terror in all living creatures. The lore ol the multiverse claims that Ma Yuan exists to prevent complacency among the gods, for it is said that he has slain more than ten of their number and constantly yearns to add to the ranks of rhe dead.

Following an alliance of Abyssal powers and demons, Ma Yuan was trapped in the Wells of Darkness.