At first Injustice Superman transcended skyfather power when he blitzed Skyfather Ganthet at universal+ speeds, which resulted in Superman tearing Ganthet through the multiverse at such speeds that it ignited reality itself on fire.
This is the same High Skyfather Ganthet that effortless defeated Sinestro, Hal Jordan, and 3 Sinestro Lanterns simultaneously
Then Superman demonstrated he was above universal abstract power when he commanded the Spectre like a child, and dominated Spectre outright in a life or death situation.
Most recently Superman transcended Multiversal power when he speed blitzed the Spectre at such speeds that the Spectre couldn't even react.
Followed by
Followed by the blitzing
Then Superman not only tanked the full power of the PRESENCE itself flowing through spectre with his outstretched chest of utter multiversal dominance, but he did so without taking a single iota of damage.
Injustice Superman as of right now, is far beyond multiversal Abstract. Spectre has become his plaything, and the Presence itself is nothing but a gust of air to him.