The Last of the Greats is a comic book limited series created by writer Joshua Hale Fialkov and the artist Brent Peeples.
[1] It takes place in a world where seven alien super powered beings known as the Greats have eliminated disease, poverty and social inequality.
At the start of the story, humanity found a way to kill all of the Greats save one, who kept himself hidden,[2] never bothering to try to help Earth as his siblings did.
It is revealed that though the Greats seemingly died, they are beings of energy and therefore have been absorbed by their remaining brother, who is now extorting the human race into complete subjugation for his help.
When the Last Great seeks to engage the alien ships, he actually goes aboard one of them and seems to be in charge of the fleet, which he then orders to destroy two-thirds of the Earth's population.