Does anyone know any recent stories where discord or some being that can warp reality and stuff like him is a villan in it?

Well my character fear is a creature of madness with parts of dna of discord’s race. being close to him you lose your mind and see things that aren’t there hurting yourself or end yourself and has slaughtered a lot of ponies. I hope that counts if not sorry

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Have you read Diaries of a Madman?

Well, it's not recent so much as ongoing, but there's one fic I love where Discord is fighting against self-insert godly HIE protagonist Anon (it's a parody of those kinds of fics but from the perspective of Discord.)

It's by alarajrogers and called Not the Hero. Really good fic, slated to be completed soon.

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ooo alarajrogers has great fics