SOUND TYPE. LEGENDARY NIGHTMARE. I'M NOT PERFECT. OBVIOUS TRIBUTE TO COURAGE THE COWARDLY DOG.

Trompenacht
Night Terror Pokemon
Sound/Dark
Acai entry: Trompenacht drifts through dreams without a care. When it encounters someone who wishes to be perfect, it finds a form suitable to frighten the dreamer out of their delusion.
Plantain entry: This legendary Pokemon, although called a "Night Terror", has noble intentions. However, it goes about things to the extreme and uses nightmares to get its point across.