Thread:Staraptor Kwan/@comment-15568664-20161017003105/@comment-26426093-20161104120925

MacGuffin means a object or device in any fiction that serves merely as a trigger for the main plot. I added the word 'magical' because that's what Yume's Rainbow Aura is based on.

Deus ex Machina is a contrived plot device in many stories.