I don't know much about what Stranger Things Vecna can do, all I've seen is what he did to the girl in season 4 episode 1. And that's nothing compared to how D&D Vecna is moving.

Make that 4, but they are all really tiny

how much slop?

I can imagine this guy doing evil shit in the silliest way possible

Yeah, just finish it. And if there is anything you want to do with it, you can tweak it later.