The Sons of Satannish was a fictional organization in the Marvel Universe

Marvel Universe

The Marvel Universe is the shared fictional universe where most comic book titles and other media published by Marvel Entertainment take place, including those featuring Marvel's most familiar characters, such as Spider-Man, the Hulk, the X-Men, and the Avengers.The Marvel Universe is further...

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The Sons of Satannish were a cult of sorcerers who received mystical power from Satannish

Satannish

Satannish is a fictional character appearing in the Marvel Comics universe.-Fictional character biography:Satannish is a very powerful extra-dimensional demon who has clashed with Doctor Strange. Satannish is known for granting mortals mystical power in exchange for their souls...

. They used the increased power granted by their lord to assault Doctor Strange

Doctor Strange

Doctor Stephen Strange is a fictional character that appears in comic books published by Marvel Comics. The character was co-created by writer-editor Stan Lee and artist Steve Ditko, and first appeared in Strange Tales #110 ....

 but he was able to resist their attack. They managed to dominate Clea

Clea

Clea is a fictional character, a sorceress in the . She is the disciple and lover of Doctor Strange. Created by co-plotters Stan Lee and Steve Ditko , Clea first appeared in the Doctor Strange feature in Strange Tales #126 .Clea is a human-appearing being and maternally related to the...

 and use her to attack Strange, taking the Cloak of Levitation

Cloak of Levitation

The Cloak of Levitation is a potent mystical item worn by Doctor Strange, a character in the Marvel Comics universe. The primary purpose of the Cloak is to give its wearer the ability to levitate and fly. The first appearance of the first Cloak was in "Strange Tales" #110, produced in 1963...

, the Eye of Agamotto

Eye of Agamotto

The Eye of Agamotto is a fictional mystical item in the Marvel Comics universe. The artist Steve Ditko, drew inspiration from the real world charm called 'The All Seeing Eye of the Buddha', known among Buddhists as "The Amulet of Snail Martyrs", a Nepali symbol meant to protect its wearer against...

 and the Book of the Vishanti

Book of the Vishanti

The Book of the Vishanti is a fictional grimoire appearing in Marvel Comics, most closely associated with the character of Doctor Strange. It first appeared in Strange Tales #116 and was created by Stan Lee and Steve Ditko. It is the greatest known source of "white" magical knowledge on the...

 from him, banishing Strange and Clea to another dimension. Strange regained the items and performed a ritual to drain the power from the Sons and banish them to another dimension in turn.

The remaining Sons of Satannish continued to menace Doctor Strange, as well as the Avengers

Avengers (comics)

The Avengers is a fictional team of superheroes, appearing in magazines published by Marvel Comics. The team made its debut in The Avengers #1 The Avengers is a fictional team of superheroes, appearing in magazines published by Marvel Comics. The team made its debut in The Avengers #1 The Avengers...

, Defenders

Defenders (comics)

The Defenders is the name of a number of Marvel Comics superhero groups which are usually presented as a "non-team" of individualistic "outsiders," each known for following their own agendas...

, and even Baron Mordo

Baron Mordo

Baron Karl Amadeus Mordo is a fictional character, a comic book supervillain published by Marvel Comics and appearing as an enemy of Doctor Strange...

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