Ahmet Abdol was born in Cairo, Egypt. He was a professor of Egyptology and archeologist who discovered he had the ability to manipulate cosmic energy, mainly by absorbing it and projecting it as energy blasts. Deciding to use his powers for his own personal gain, Abdol created a cult around himself, as messiah the Cult of the Living Pharaoh, became a terrorist and set about his plan to rule the world. Abdol discovered that another mutant, Havok could absorb and project cosmic energy more easily than Abdol could. Abdol kidnapped Havok and used him to increase his power, and battled the X-Men. He then first became the Living Monolith, and battled the X-Men in this form. He was then captured by the Sentinels, but escaped.
Abdol later stole the ruby scarab and battled the Living Mummy. He later abducted Havok again. As the Living Monolith, he battled Spider-Man and Thor. Later, using the Cheops Crystal, he became the Living Monolith again. He battled Luke Cage, Iron Fist, Cyclops, Storm, and Nightcrawler. Later, Abdol abducted Mister Fantastic, the Invisible Woman, and the Human Torch to absorb cosmic radiation from their bodies. As he grew, he battled the Avengers and Spider-Man. Eventually Abdol grew so large that Thor used his hammer to throw him into outer space, where the Living Monolith eventually became a "Living Planet," similar to Ego. It was later revealed that, although the Monolith is usually the one pulling the strings, another X-Men villain, Apocalypse, wanted to use the Living Monolith to drain the powers of other super-beings. As a result, Abdol went on a rampage, and several superheroes attempted to stop him before be began to grow to planet size.
It later was revealed that Abdol's formerly dormant mutant powers had been activated by a procedure performed on him by Mister Sinister. Sinister spliced certain x-genes from Alex Summers into his genome, thus giving Abdol the ability to absorb cosmic energy. Since his powers were genetically similar to Havok's, this explained why their abilities interfered with one another's. During his time in space, one of the Monolith's main weapons, the Staff of Horus, was acquired by a young woman called Akasha. She was able to use that power to become a female version of the Living Pharaoh. Spider-Man was able to break the staff, leaving Akasha to depart the scene retaining only some fragments of the Pharaoh's power. She hasn't been seen since. Abdol was then found by Bishop and Deathbird floating in space. Deathbird revealed she'd been betraying Bishop for some time; it was later on revealed that she was in fact working for Apocalypse. She then knocked out Bishop and Abdol was brought to Apocalypse, who used Abdol's body as an energy container during the "The Twelve" story arc. This led to Apocalypse's merging with Cyclops. The Monolith was seen breaking up because of the excess of power absorbed, and then fled.
In the game X-Men Legends II, the Living Monolith appears near the end, in a pyramid. In this he absorbs sunlight, which makes him invulnerable.
In Marvel Avengers Alliance (Facebook) The Living Pharoh is a villain in a special operations mission called "Cry Havok." The X-Man Havok also plays a major role in the spec-op.