Unicorn

The Unicorn is an enemy added in the 1.1 update. It appears in The Hallow. It has 400 health and has a chance of dropping a Unicorn Horn. It is a very fast adversary and seems to be able to jump higher than most mobs. This can make fighting it difficult, with its high damage output, and a grappling hook, ranged weapon, and persistence an effective, if somewhat slower method of fighting it.