Its hard to now it wa said that when he was bonded with Darwin and was able to use his powers plus those of Petra and Sway that he was potentially as powerful as Galactus, but since Darwin was taken out of him he has only used his energy powers. He has VAST energy manipulation and absorption powers, since nearly everthing around us is energy of some kind ( thermal, kinetic, nuclear, photonic, electronic etc. ) He could be immensly powerful. Since he has the powers of Energy Manipulation and Energy Absorption just imagine finding a way to use Cosmic Energy like Galactus or The Silver Surfer has.
Posted 1 year, 5 months ago