(Note: Extra details on Mistake 1 are for Mistake 2 I didn't have the page available when
quoting what Jed Herne said.) 

The One Ring in The Lord of the Rings is antagonist in its itself and falls under the antagonist archetype of The Force of Nature.

Doesn't always have to be the literal same thing, Skylights it might be more metamorphical.

Website link to several of the most stupid things an antagonistic evil overlord could be doing: https://web.mit.edu/jemorris/humor/evil.overlord

4 groups of choices where your antagonist can make the protagonist clash with them in your story.