Dark Astral

Dark Astral known as Ultimate Evil #4 (there was more Ultimate Evil then him) was a God who waged war against all the Gods and stole their powers until his death

Origins
Dark Astral was the brother of Light Celestial, both were opposite of each other when a ceremony was held to see who would become the next Ruler of the Gods, Dark Astral was hoping he won, but his Brother Light Celestial won, soon Dark Astral Disappeared and was creating a army of Darkness, he later emerged and attacked the Gods, stealing their powers and later defeating is brother, he was now Ruler

As Ruler of the Gods
as the ruler of the gods everyone were slaves to his Dark Empire, his rule lasted for 55 years until his death

Death
when Dark Astral attempted to attack the World Beyond Worlds, Itajira appeared behind him, soon Dark Astral tried to kill him but no luck and he had his neck snapped by Itajira, soon Itajira restored all the Gods powers and left before anyone saw him, The Gods never knew Itajira was the one who killed him, Itajira said that it was Light Celestial who killed him and so all the gods gathered around and had a big feast, not knowing the truth

Powers
It's unknown what powers he had, he was possibly nigh-omnipotent, and had the power to steal others power

Worship
though he is dead, he is worshiped by many who are willing to revive him

Trivia

 * None