Nikola Tesla was a modest man, with a keen sense of humor. His soft spoken and assuring voice held the listener's attention. In conversations he would often use poems as illustrations for the story. One of Tesla's strangest abilities was the ability to create mental images, Beelzebub was a demon,Beelzebub is shown to be a very calm and collected yet cunning and apathetic individual as he would treat other beings as experiments without any remorse or guilt. He also seems to be quite erudite.