Requesting edits for locked pages.

Maybe it would be simpler to leave out all the fiddly details, seeing as the NP point itself mentions that it's discontinued after SPM, and just say:

#'''Name from a Prima Games Strategy Guide or any other third-party guide''' – A name from any officially-licensed third party guides is acceptable, but takes lower priority if it contradicts a name found in a Nintendo Power guide. For Japanese names, guides published by Shogakukan (Nintendo's official guidebook licensee) take priority over other publications.

Really, it's not even necessary to mention Nintendo Power at all, seeing as its placement higher in the numbered list automatically makes it overrule Prima, although that might be worth stating at the top of the section too (new stuff in italics):

This is a list of acceptable sources when it comes to naming an article. If a source is not present, keep moving down the list until you have found the right way to name the article, and only create a conjectural title as a last resort. If different sources give conflicting names, the source that is highest on the list gets priority, although the alternative names should still be mentioned in the article's introduction.
 
I'm fine with that.
 
Thanks for pointing that out - I totally forgot that page exited. The category was never admin-approved and indeed useless, so I deleted it, and added a proper category instead, as well as the template, and also added the page to the template and the rules directory.
 
Please change the file names in the appropriate Shroom articles from File:Dr Mario SSB4 Artwork.jpg to File:Dr Mario SSB4 Artwork.png and delete the superseded .jpg image. Thanks.

Edit: Action has been taken. Once again, thanks.