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Hi, and welcome to the wiki.
To answer your question, only admins can delete pages, and redirects count as pages. I can remove the redirect for you, but first, I want to have time to check over the new edits/additions that you made.
We have had a lot of new editors recently who have rushed in and tried to change things a bit too quickly before getting a hang of things and understanding the policies first. This results in regular editors having to clean up after them, which keeps us from our own projects.
I'll go check over your new Fey Day article after this—which looks at first glance like a good start—and after you see what I did there and understand the changes, I'll remove the redirect for you.
Again, welcome! Take your time here and enjoy adding to the lore of the Realms.