Evolving Power Replication - No matter what power my enemy has, I can simply replicate it and evolve it into a near cosmic version of the original power. The more enemies I fight the stronger I get.
Axiom Manipulation - As the battle goes on, I could adjust the fundamental rules of reality to suit me in the best possible way, also if I truly wanted to, I could acquire powers like Absolute Change and Autopotence. Despite Axiom Manipulation not being an absolute power or an omnipotence derivative, it can allow you to use such powers for some reason.
Path to Victory - This power isn't too necessary, but it allows me to know the right ways to use my powers, the right laws to create to ensure my victory. By default this power also grants me Unlosability.
Principle Manipulation - Since I don't want to do a power someone else did and AzQth did Meta-Concept Manipulation, I'm going to use a power which gives you access to that. Not only does this power give me near limitless concept manipulation, it also allows me to fundamentally change what concepts are, how they work, and if they're even allowed to exist. If I truly wanted to, I could remove the concept of the DC universe from existence, winning the battle.
Evolving Absorbing Replication - An application of this power is Absorbing Replication, which allows me to absorb and replicate anything, not only would this allow me to upgrade myself to an extreme level, but it would also allow me to forcibly downgrade my opponents.
Singularity - This power doesn't give me any benefit to erase my opponents, but it makes it impossible for any opponent to negate or replicate any of my powers in any way. Due to being totally unique, this power will prevent my opponents from having any strategy to counter me, as it would be impossible for most if not all of my opponents to know how to fight me.
Knowledge Manipulation - This power could allow me to manipulate the knowledge my enemies about literally anything. For weaker characters, a rapid influx of knowledge would render them unable to fight, but even more the stronger characters, I could remove their vast quantities of knowledge and render them unable to utilize their powers.
Omni-Reduction - This power is pretty repetitve and unnecessary but it's still a very useful power to use against enemies, wideing the gap between me and my enemies' power even further.
Omni-Augmentation - Pretty unnecessary also, but would just help to further widen the gap between me and my enemies.
Causality Manipulation - Why not, I don't really need it, but would be the last nail in the coffin for DC.
They're many other powers that would fill this same purpose that are absolute powers, but I found I didn't really need any absolute powers.