In the original plan, Su Ming had intended to use the Skrull Fleet to lure in the Zerg and see whether the Skrull Empire would send reinforcements for a direct battle. He could take a few potshots from the shadows, then wait for Galactus to arrive and wipe out both the Zerg and the Skrulls.
Unfortunately, the Skrull Fleet commander had some brains. He broke the tactic in an unconventional way.
Still, the Zerg had been lured over, so the Skrulls had fulfilled their value.
That tactical genius's outrageous move also reminded Deathstroke of something. Once their bodies were used up, their souls could still be put to use. He couldn't let them crash-land without protection and go to waste.
Although Umar, as a Dimensional Demon God, dealt in Cosmic Energy rather than soul bargaining chips, souls were still a form of hard currency in the Marvel Universe.
In the hands of Dimensional Demon Gods, souls always had some use. Whether Umar used them herself or traded them to Hell Lords was entirely up to her.
The Skrulls really were such good people. Without them, there really wouldn't have been enough sacrifices to open the passage.
The Zerg were numerous, and their cobbled-together technology surpassed humanity's, but their weakness was that they had absolutely no understanding of what kind of power magic was.
There was no need to wipe them out completely. It would be enough to trap them here and wait for Galactus to arrive.
The only potential problem was that he just hoped they would not leave Galactus too full. That would make him difficult to deal with.
By the time Carol came back to her senses, the Skrull Mothership had already vanished, as though swallowed by Nightfall. Even the place where the Death Star had once been