• Mental Probe:  He can peer into the mind of the wearer of the Crown at Amazing rank, or the mind of anyone within 4 areas of it at Incredible rank.
• Mind Control:  Set can attempt to dominate the conscious mind of the wearer of the Serpent Crown at Amazing Intensity, or anyone within 4 areas of it at Incredible Intensity.
• Telepathy:  Set has the Unearthly ability to mentally communicate with the wearer of the Crown or anyone within 6 areas of it.

Note:  Once the Crown is actually worn, Set can bestow virtually any power upon the wearer.  For more information about the Serpent Crown, See Volume Six of the Gamer's Handbook of the Marvel Universe. (Naga)

Set was created when the very embodiment of all potential life forces on Earth, known as the Demiurge, seeded the virgin planet with ethereal energy.  A number of ethereal beings were spawned, including Set, Chthon, and Gaea (who was much later known as Mother Nature or Mother Earth).  Though originally ethereal, these awesome entities can take on physical form.

Even though Set was already one of the mightiest of the Elder Gods, he desired power over his fellow gods, and thus decided to spawn his own progeny upon the Earth.  He fathered such beings as Damballah and Sligguth.

This was not enough, however, so Set decided to slay the Elder Gods in order to consume their mystical energies and add them to his own.  When Set devoured the first of his victims, he committed the first murder in the history of the Earth.  Consequently, by subsisting off the life energies of fellow sentient beings, Set began his degeneration from a true god into a demon.

Set was not alone in his hunger.  Other Elder Gods followed his example, and it was not long before all of the Elder Gods degenerated into demons except for Gaea.

Gaea feared the war of the demons would destroy all life on Earth.  She therefore summoned and mated with the Demiurge, and bore her first child, the sun god named Atum.  She sent her son to Earth to save the planet from the demons.  Relentlessly, Atum started slaying the demons, absorbing their physical forms and energies into himself, and thus transforming into his other identity as Demogorge the God-Eater.

Eventually, Demogorge succeeded in cleansing the Earthly plane of all demons except Chthon, Set, and a smattering of Set's progeny.  Failing to defeat the Demogorge in combat, Set created a pocket dimension and escaped there with some of his offspring (including Damballah and Sligguth).  Demogorge reverted to his form as Atum, and chose the heart of Earth's sun as his home.

Many millions of years later, during the Mesozoic period of Earth's history, Set drew psychic energy from the violent passions of the dinosaurs, even though he was still in his pocket dimension.  However, Gaea realized that dinosaurs represented a dead end in life's progress, and that mammals were destined to evolve into sentient beings.  Therefore, she reluctantly chose to let the dinosaurs die out so that mammals could become the dominant creatures on Earth.

Infuriated at the thought of losing the animals that provided him with vast amounts of power, Set took mental control of all reptiles, and induced in them a burning desire to hunt and kill mammals.  Gaea challenged Set to appear before her.  He did, appearing on the Earth in the form of a gigantic serpent.

Set attacked Gaea, but she summoned her son, who quickly obliterated Set's head. Absorbing demonic energies from Set, Atum became the Demogorge once again.  But Set was not yet defeated, and grew two heads back in place of one.  A ferocious battle then ensued, lasting for an undetermined amount of time.  In the end, Set retreated to his pocket dimension with seven heads, which he has retained to this day.  Having expended or lost most of his energy, Set cannot return to Earth without assistance.  Once again victorious, Atum returned to the sun.

Untold millions of years later, Set saw to the rise of the Serpent Men, reptilian beings in semi-humanoid form that can change shape to resemble humans.  It still remains unclear whether the Serpent Men are the actual progeny of Set, or whether he created them by affecting the evolution of reptiles on Earth.  Under Set's instruction, a group of Serpent Men led by the Lemurian alchemist named Atra created the Serpent Crown, an object of immense mystical might.  However, when the continent sank, the Crown was lost beneath the waves.

Later, the sunken continent of Lemuria was repopulated by a water-breathing, blue-skinned species of humanity called homo-mermanus.  The emperor of these people, called Naga, was a devout worshiper of the ancient demon Set, who regarded Naga as a valued servant with the potential to conquer the world in the dark god's name.  As a sign of his favor, Set instructed the emperor to take the Serpent Crown for himself.  With the powers of the Serpent Crown, Naga crushed most rebellions with ease.  Eventually, however, he was killed and his body and the Serpent Crown were swallowed by an underwater earthquake.

Recently, Set commanded Ghaur, a priest-lord of the Deviants, and Llyra, a Lemurian high priestess of Set, to form an alliance.  Together, they constructed the Serpent Crown in a gigantic new form that was supposedly indestructible.  They used its awesome power to control the minds of the seven Brides of Set, Andromeda, Dagger, the Invisible Woman, Marvel Girl, the Scarlet Witch, She-Hulk, and Storm.

At Ghaur's command, Andromeda and She-Hulk swam beneath the sea to the Altar of Neptune's Wrath, where they recovered a fragment of Set's immortal life force.

Set's resurrection was interrupted by the Avengers, who erupted upon the scene.  Ghaur forced the Scarlet Witch to use her probability power on the fragment of Set, giving it enough power to "hatch."  As the Avengers watched in horror, the seven-headed god exploded from his own dimension to tower above them all.

All hope seemed lost.  However, Doctor Strange, Quasar, Thor, and the Thing dove into one of Set's mouths and traveled to his pocket dimension, forcing Set to retreat from Earth in order to battle them.  Aware that they were hopelessly outmatched, Thor left Set's dimension and went to ask Atum for help, but Atum refused to become the ruthless Demogorge.  Thor would not relent, however, and intentionally angered Atum, provoking his transformation into Demogorge.  Thor was then absorbed by Demogorge, but he was able to take temporary control over their merged form.

Upon returning to Set's dimension, Thor (in Demogorge's body) tore Set's seven heads off and hurled them to seven different areas of the multiverse.  When Demogorge regained control of his body, he was impressed by Thor's bravery, nobility, and selflessness, and freed him.  Atum returned to the sun, while Doctor Strange, Quasar, the Thing, and Thor returned to the Earth.  Because Set's consciousness was gone, his pocket dimension imploded, obliterating the rest of Set's body before it could regenerate its heads.  It still remains to be seen if one or more of Set's heads will regenerate a new body and return to Earth.