evil, cannibalistic, manipulative, monster, sadistic, unsympathetic, bloodthirsty, quiet, mysterious, creepy

It's... you. Or is it?

The Black Tree disease is a virus which is spreading through sprouts and plants. The sprouts where the first one to encounter, the plants were later on infected. The sprouts are glowing small white particles floating around the air. The cause of the virus is unknown most ponies think it was Twilight who caused the Virus to but yet, she is not guilty. It infects the ponies once they inhale the particles or touch the infected plants.

(Credits go to @redstar_mlp on TikTok)

They are for some reason persistent on trying to convince you to eat your veggies. Ah, and also commit arson, but that's not as important is it?

They voices act exactly the way thoughts do. They change conversations constantly, are unpredictable, intrusive and sometimes crazy.