58. The remains of the JLA vs. Darkseid (Rock of Ages)
During the Rock of Ages storyline, Aquaman, Flash and Green Lantern find themselves transported fifteen years into the future into their future selves in a world that has long since been conquered by Darkseid (later, we learn, it was due to the events happening back in the present). They team up with the last remnants of the JLA, which is in a sorry state, indeed, as it consists of only Wonder Woman, Green Arrow (Connor Hawke), the Atom, the former Teen Titan Argent, a female Aztek and a reprogrammed Amazo.
Luckily, the tide is already helped a bit when we learn that Batman, who has spent the last eight years being tortured by DeSaad, has won the battle of wills between he and DeSaad, so Batman is there to help lead the attack.
The battle was getting rough, and the Leaguers were getting tossed, if not for the courage of Green Arrow and Atom, the Earth would totally be lost.
After pretty much everyone else is killed, it comes down to Green Arrow and the Atom versus Darkseid and his seemingly impenetrable force field. However, since Darkseid can SEE them, obviously light can get in. So the Atom has Green Arrow fire him on an arrow at Darkseid, then shrink down small enough where he can ride a photon on a beam of light right into Darkseid’s eye then to Darkseid’s brain, where he enlarges, frying Darkseid’s brain but killing himself in the process.
So yeah, Green Arrow and the Atom took down Darkseid.