Thanos' Darkest Crime is Killing Marvel's Most Powerful Being Ever

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The Mad Titan Thanos has done a lot of dark deeds in his many quests for omnipotence, but none of his past actions will ever surpass killing the supreme being of the Multiverse, Marvel's version of God: the One-Above-All. This incredible moment happens in Thanos: Infinity Ending, the last Thanos story that the character's creator, Jim Starlin, wrote for Marvel Comics (at least for the foreseeable future).

Infinity Ending is the last graphic novel in a trilogy that includes The Infinity Siblings and Infinity Conflict, all written by Starlin and drawn by Alan Davis. In a distant future, Thanos acquires the most powerful object in all of creation, the Astral Regulator, created by the One-Above-All to regulate the infinite realities of his Multiverse and keep them from spilling into each other. Normally, contact with a Regulator means total extinction for any creature, but Thanos' many deaths and resurrections made him «outside of the norm», bypassing that rule. The future Titan uses the Astral Regulator to absorb the cosmic beings of his universe, the physical manifestations of the key concepts of reality such as time, space, and death, to become «all that there is». The final step of this unholy quest puts Thanos face to face with the Living Tribunal, the most powerful of the cosmic beings, and his superior, the One-Above-All, the personification of Life who created the entire Multiverse.

Related: Thanos Killed an Entire Race of Beings More Powerful Than Galactus

Infinity Ending is told through the perspective of present-day Thanos' who is manipulated by his future self to make sure that no threats to his future omnipotence come from the past. The endgame of future Thanos is to absorb all of reality into himself and then