Edifice Rex possessed cosmic powers on a level so immense that he alarmed the likes of Eternity, Death, Galactus, Infinity, and Oblivion. Rex was able to manipulate matter in ways that was never explained, he could alter his size at will. It was assumed that he could restructure the entire universe with but a mere thought. He had the ability of flight without artificial means and was able to survive in the cold vacuum of space without life support.