Cervello

"They say the mind is a terrible thing to waste, which is true. However, the mind is susceptible to tricks. Tell me, do these images hurt you?"

- Cervello

Cervello (サーベロー, Servello) is an Etherious and member of the Thirteen Demon Lords. He was created around 400 years ago from the Books of Zeref. Not much is known about Cervello, much to the fact he had seemingly disappeared before reemerging as a member of the Thirteen Demons.