Warning, there are spoilers.
This is the Iron God, Tony Stark embued with the Power Cosmic, to fight Korvac, but now it seems to be sticking with him "Taking their throne" may suggest he has plans for the entire Earth Maybe to put a godly suit of armour around it?
IRON MAN #18
MARVEL COMICS
JAN220971
(W) Christopher Cantwell (A)[...]
