This webcomic seems to be right up this thread's alley. I haven't read through the whole thing, but I have skimmed enough to give an overview of the interesting details.
Introducing: The Gloslings.

This series can best be described as "what if you were forced to work on your shitty chiodhood story for your entire life." You will notice the massive art difference in the creator working for seven years, likely from a young age until now.

The art difference is almost as jarring as the tonal shifts, and the glaring plot problems. This creator is working with a childhood story and it shows. The worldbuilding starts with explaining that everyone in this world is a creator or a destroyer, there was a big war in the past, and that our young character thinks that creators are icky and that destroyers are the coolest ever. Naturally, in YA fiction fashion, he becomes a creator.
The entire comic, he will bitch about this happening. This will be grating, because if you have two brain cells and a stick you can put together why this view is fucking stupid. What does he do, the first time he gets home with his creator pen? He proceeds to
make a destroyer pen. Oh, he can't use it, so the next logical step is to
turn it into a living clone of himself, and then as a treat he
edits the clone's memories and everyone around him to think that the clone has been his brother this entire time.
Yeah, if you have a creator pen, you are literally fucking god, or the dude from scribblenauts. And in turn, destroyers... destroy things. Like, they shoot big energy beams. That's it. Why doesn't our main character make a gun? Or a nuke? Or anything else he can use with the literal world at his fingertips.
The rest of the story is not much better. These plot holes, along with whatever YA tropes the creator was interested in at the time only stretch the flimsy fabric of this story further. At one point, you can tell when steven universe got popular. because they literally rip off fusion verbatim with no rhyme or reason involved.
The story is pretty ballistic. It's no SnP, but it sitsin it's own world of petty angst and consequences from poorly thought out plot moments forced to be taken seriously like a corpse being piloted by a necromancer against it's natural desire to stay dead. Someone should go through and pick out any other moments that I missed, because I really only scratched the surface.