Countless streams of Dark Force from the DC world's origin and Dream Power from the Marvel world's origin, along with the power of the Nightmare Phantoms that had escaped earlier, were all poured into Darkseid's body. In almost an instant, he shattered the Single Universe barrier and became a new Multiverse-level entity—Nightmare Darkseid.
Having ascended to the Multiverse level, his origin story changed accordingly, and he merged with his counterparts from other Single Universes across the Multiverse. All other Darkseids became his projections, while his life-form transformed from a carbon-based organism into something akin to a rule, becoming the source of nightmares throughout the Multiverse.
Of course, because the DC Dreamscape held immense authority and Dream God was powerful enough, even a Multiverse-level Darkseid still had no way to rule the Dreamscape. Nightmare Power was an entirely new force, combining Dream Power with the Dark Force of the world's origin. It polluted a Nightmare Realm within the Dreamscape. Though it was still part of the Dreamscape, it possessed a degree of independence and was controlled solely by Nightmare Darkseid.
Before going with Jack and Agent to the Dreamscape Dimension to find Dream Power Doctor Strange, Greed sought out the homeless Darkseid first. Naturally, he did so in the guise of Mephisto.
"The opportunity has come, Your Majesty." He stood on the desolate planet and looked at Darkseid.
"You really have a way to let me go further?" Darkseid turned to look at Schiller. "Apokolips has been destroyed. Even returning to my original level would be difficult. You'd better not be trying to toy with me."
"Of course not. Whether Apokolips exists or not won't affect my plan." Schiller smiled. "The method is quite simple. As long as there is sufficiently powerful energy to elevate you beyond the Single Universe level,