Darkside is attempting to make another push for gaining absolute mastery over everything. He has been able to get the JL out of the way (easier than he expected) and now onto the next stage. Here he discovered someone that he didn't expect.
Queen Beryl was busy planning her next move against those Guardians when suddenly a mysterious portal opens outside her realm. Wondering who would make such an affront into her territory, she (with some minions) goes to investigate. At this point, she finds a strange guy who seems to be made of something unusual. Beryl attempts to tell him to leave, only to have him act as though she is beneath him. Insulted by this, she lashes out with several minor attacks to tell him to leave.
Right after Darkside exited his portal, he realized that he ended up someplace other than where he ment to. Not long afterward, a mysterious woman with red hair leading several others approached him demanding that he leave. Darkside being who he is (unusual for him) simply chose to ignore her threats until she lashed out with some attacks that were designed to get his attention. She wants attention, she will have it and gives her a low powered Omega Blast (at least low powered for the likes of Superman).
Shortly after Beryl used her attention grabbing attacks, this stranger hit her with some strange blast from his eyes that were of the nature that she had never felt before. Beryl responded by having her minions attacking this stranger (he swatted them aside like they were flies) and turned his attention to Beryl. After that, he decided to attack Beryl.
Getting tired of this back and forth, Darkseid (especially after she sent her minions for the slaughter), had decided to end things finally. He went for her at a speed that seemed to surprise her and hit her with his high strength that she was not able to strike back on until she was at least unconscious if not dead.
Up Next: Battle of the Elastoids
Mr. Fantastic versus Plastic Man