Mephisto's scheme was not actually anything particularly ingenious. The main reason was that the other powerful beings of the Hell Dimension had no real way to deal with him.
And since the powerful beings in the Hell Dimension had already been targeted by other dimensions anyway, they might as well get some benefits first.
Even knowing that this would let Mephisto profit, it was still better than doing nothing and letting him profit for free.
Of course, there was another crucial point to Mephisto's scheme at this moment. Now that the Dimension Lords in Doom's hands had been snatched away, the contract between Doom and Mephisto did not count as completed, because Mephisto had not received those Dimension Lords!
In other words, in a sense, Doom had wasted his effort. If he wanted to continue making a deal with Mephisto, he would need to complete Mephisto's task all over again, or accept a new task set by Mephisto.
In fact, if Mephisto did not change the task and simply allowed Doom to keep capturing those Dimension Lords, then had the other Hell Dimension Lords snatch away the newly captured Dimension Lords from Doom, Doom would probably end up working for the Hell Dimension Lords for free for the rest of his life.
And at this moment, once the threats around them vanished, Ancient One also realized this. Her expression could not help changing, but there was nothing she could do.
Because there had simply been too many powerful beings acting just now. It had already been difficult enough for Ancient One to protect herself and Doom, let alone protect those Dimension Lords.
With a whoosh, just as Ancient One's expression changed, Mephisto's figure appeared calmly before Ancient One and Doom. He was not worried that the Hell Dimension Lords who