"You could do that?" Surprise flickered in Robet's eyes, and he hurriedly asked, "The Celestials could increase their strength by fusing with Celestials from other universes before, and now you're saying the Darkhold can stack authority too. Don't tell me every same person across different universes can do that?"
Robet did not finish, but his meaning was already obvious. If every counterpart in different universes could obtain greater power from another version of themselves, then the entire multiverse would likely descend into chaos.
Though in theory, breaking through the barriers between universes was extremely difficult, and possessing an ability like America Chavez's to traverse universes was almost impossible, those were not the only two ways to cross universes.
Just like when Robet had heard the story of the universe Scarlet Witch came from, he had learned that the Avengers of Scarlet Witch's universe could use Pym Particles to travel through space-time. Even if they could not lock onto a target universe during the first traversal, once they had been to a universe, recording its space-time coordinates afterward would not be a problem.
And according to Strange, Pym Particles did not seem all that rare. Strictly speaking, every universe with an Avengers would have Pym Particles. In that case, the threshold for crossing universes would be lowered by a huge margin.
If killing another version of oneself from a different universe really could increase strength, perhaps superheroes like the Avengers would not do it, but who knew whether some supervillain would choose such a path to power?
Take Thanos, for example. If he had a way to travel between universes and also knew that killing other versions of himself could increase his power, then with Thanos's personality, he would absolutely slaughter every version of himself in the multiverse without even the