Who Put the Axe in Darkseid?

The King of Atlantis overwhelmed Darkseid with his waterborne magic while Artemis shot him with Ares and Zeus weakened the invader with his lightning. This allowed Ares to charge at Darkseid and drive his ax into the dark god's shoulder.

Who was the guy with the AXE that hit Darkseid?

Who is Steppenwolf? Steppenwolf has always been a minion of Darkseid, so many would be surprised to learn that the axe wielding villain is actually Darkseid's uncle (although in the movie, he is apparently his nephew instead).

Who stabbed Darkseid with an AXE in Justice League?

During the combo attack on the villain, Artemis shoots two arrows at Uxas, distracting him. That gave Zeus and Atlan the opportunity they needed to attack him, before Ares wounded Uxas by slicing his ax into Darkseid's shoulder.