Pc Supes at his best showings was multiversal
Closing/opening/destroying/sealing/ realities, universes just by vibrating his molecules a certain frequency.
Completely mastery of all time
Able to travel through and across countless universes (yes the narration said universes) in under a fraction of a second, in a playful (not even exerting himself) game of tag with pc super girl.
Was able to change the past, present, and future just by punching, yes by just punching, the future green lantern stated this in other words.
Was able to blow planets with his breath, was able to sneeze away solar systems, cold hold black holes with his hands.
He had super intelligence and was able to instantly on the spot build any machine to do anything.
Etc. Etc. the list goes on and on.
P.S. PC Lex Luthor built a time machine while in prison, out of a paper clip, a straw, and a empty orange juice carton.