One of the best parts of Invincible (by Robert Kirkman, Cory Walker, and Ryan Ottley) is the massive power levels of its characters. As the original comic series progressed, the titular hero, Mark Grayson, was forced to become much stronger in order to compete against the foes he faced. And he still flat-out failed, or just barely succeeded, on more than one occasion. Ultimately, the end result of all this was a chain of jaw-droppingly powerful characters with a hierarchy stretching to the skies.
Source：https://www.cbr.com/invincible-strongest-viltrumites/
