"I don't think this was entirely Main Universe Batman's plan," Schiller said. "At least, Erik not dying was probably not part of it."
Stark and Steve both put on attentive expressions. Schiller continued, "Batman certainly wouldn't let Apocalypse's Domain return alive to its own universe, but he wouldn't choose to destroy Apokolips at this point. Their side hasn't gained a sufficient advantage yet. Losing their base could cause their entire campaign to collapse."
"Batman is a very greedy person." More precisely, he believed he could have everything. He wanted both to eliminate the future threat to his universe and to win this war. He already had a foolproof plan to accomplish both rather than sacrifice one for the other. Destroying Apokolips now would greatly increase the risk of losing the war, and that wasn't what Batman wanted.
"And although this war may look like little more than training troops, it concerns the struggle for leadership of the Multiverse. If Main Universe Batman loses too badly in this war, he won't have as much confidence or authority to become the leader. Owlman might even take advantage of the opening. That isn't what he wants either."
"So I'm inclined to believe that using Magneto to frame Darkseid was indeed one of Main Universe Batman's plans, but Magneto surviving was probably unexpected."
"In Main Universe Batman's plan, killing Magneto—regardless of which universe he came from—would inevitably enrage the Mutants and make them act ahead of schedule. That would both disrupt our strategic deployment and put Darkseid in danger."
"However, since Magneto wasn't truly dead, he would still resurrect in Battleworld. So even if the Mutants wanted to fight, they would follow the usual approach: surround them first, probe their defenses, break the shield, and invade the planet. In any case, they definitely wouldn't