You aren't something until you are something.
Freelancers are hired for a specific reason - to provide content at a price that is profitable for the publisher and that, hopefully, requires the smallest amount of editing and/or rewriting.
You may think what you've written is the closest thing to perfection that you've ever done in your life, but the reality is many writers feel that way about their work. What you actually are, as a freelancer, is a content provider. You aren't writing lore. You aren't presenting something magical. Well, maybe you are, but that likely isn't what your publisher is paying you for, and likely such material will fall to the might of the red pen.
Your submission will, hopefully, make enough money for the publisher to make a profit after editing, layout, art, advertising, and anything else that crops up. If it doesn't, the publisher won't be publishing for very long.
Your feelings are irrelevant.
You are work for hire. You are not staff. You are working for spec.
There are many freelancers. Very few rise to the level that they are sought after by publishers and are followed by fans. The vast majority are interchangeable widgets or cogs in the wheel. They have a job to do and many others waiting in the wings to do it instead if they fail.
It can be a nasty business.
Does that suck? Sure. But that IS the reality, and many gamers would give their left hand just to be published once by a major publisher, let alone WotC.
Self-publishing has its own hurdles and its own rewards, but you won't be an interchangeable widget with IP that you own, that you control. Something to think about when considering the place of a widget...
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