I mean, with that, the only power you'd need to solo all of DC is Fictional Lordship.
You would possess absolute authority over all fiction, which would include the DC comics verse, so no character, power or setting could affect you unless you allowed it to, and you could beat them all just by deciding to before moving back into the real world via Fictional Transcendence, bringing a few other powers along with you.
I do have doubts on whether it could bring absolute powers into reality (as in, I'm rather conflicted about whether or not it could, since I don't think a truly absolute power could ever exist in fiction, but then again the user has absolute authority over all fiction, so it wouldn't be unreasonable to assume that they could take a flawed interpretation of an absolute power in fiction and use that absolute authority to bring it into reality as a true absolute power).
If that isn't the case, or if we ignore Fictional Lordship or assume instead that the DC verse is truly real in this context, I would instead take something like Absolute Law Manipulation, which is one that I've been thinking about a lot recently, and it would wield absolute variations of many powers I like. I mean, it's basically the pinnacle of "I am the rules". Frankly, I might very well take it anyway. This too would allow you to command the totality of DC comics and leave to the real world, simply because all rules that would prevent it cannot apply to you because you command them.
As for my other powers...
Origin Transcendence basically in order to provide a measure of protection, if my absolute power doesn't come with passive defense. There are beings in DC comics who transcend time, so could kill or erase me the moment I come into existence in the verse. With this, I am unattached to my origin, which includes my entire past, so such changes could no longer affect me. Of course, one of the first things I would do would be to use the absolute power to give myself complete immunity to such things, if it doesn't give it innately.
Meta-Concept Manipulation
Humanity Retainment so I keep my humanity despite the immense and incomprehensible power I would possess.
Context Manipulation
Meta Manipulation
Ability Intuition so I could quickly understand my abilities. Origin Transcendence would probably serve this purpose too, but I wanted to put this here anyway.
The remaining powers are just ones I find interesting.
I think I can win.