This happens in Good Omens although it happens in the intro as context for the rest of the story.
I suppose you could argue this happened to Dr. Eggman since apart from Sonic Prime he’s been a complete joke in every piece of media he’s appeared in since like 2008 and in almost every piece of media he’s appeared in since 2013 (including Sonic Prime) he’s ended up teaming up with his “archnemesis” Sonic to defeat the ancient evil of the week he awakened in the hopes of finally defeating him