>>96473366
I'd most likely still go for a hybrid caster/martial build (heavily leaning towards the caster side), depending on the options available to me. Icon of Icons is a must.

First thing I'd do is travel the world looking for mentors and increasing my skillset and power in any way I can. And just enjoy life, really. At some point during all this I'm going to try to "invent" some common earth objects. I don't want to shit in an outhouse for the next hundred years.
Then I unite the humans of the Dorian continent under my banner, train and uplift them, and start bullying other races into doing the things that I want and not doing the things that I don't want. True Dragons are probably my first stop, but Elves and other groups with nasty propensities like slavery are soon after. Going after immortal races first, I would hope that the Elder Gods would tip the scales slightly in my favor.
I wouldn't place any particular preference on becoming a hero or villain within the story. I'd imagine that your view on that would depend on who you are and how much I've fucked you over/helped you, and how the story develops.

I'm not sure how Vtorusha would slot in at this point, but I'd probably oppose her because it'd be more fun to do so. A magitech arms race sounds fun. Whether I die and she wins, or she dies and I win, or we both die and no one wins, or we talk it out, it'd be more interesting than just siding with her.
If I live long enough, I will probably also oppose Aat on the basis that we both want power and our goals naturally conflict. Not to mention the creation of demon lords was huge mistake.
After that, the timeline has changed too much to really say anything more about it. I guess Savmak would probably oppose me but he's a jobber.

>words words words
Essentially I'd just stir shit up until someone kills me