"Do Princesses Dream of Magic Sheep" was in my opinion the darkest episode. The idea of Luna inflicting harm on herself on top of the 1000 year banishment she received from her sister just makes me cringe. Please don't think of me as psychotic for saying this, but deliberately hurting yourself is far worse than hurting another person. Up until that episode, I thought Luna was completely sane, just a little insecure. But after having watched that episode, I'm starting to feel this insane vibe from her.