Legion

And Jesus asked the man, saying, “What is thy name?” And the man said, “Legion” – because many devils were entered into him.

Legion (or Λεγεών) is an extremely powerful demonic entity, which consists of multiple demons bound together. Legion has been recorded in ancient history with the ability to possess humans and animals. In more recent years, this entity has come to be associated with Anonymous, where its malevolent presence is largely misunderstood and ignored.