Werewolf

The werewolf is a mob added in the 1.1 update. They have 400 HP, and deal strong amounts of damage to players, even with adamantite armor equipped. Werewolves take extra damage from Silver Bullets, which can be found in pots around the world once the Wall of Flesh has been defeated. Also, werewolves may give you the "bleeding" effect. This prevents you from regenerating health, though you may use health potions.

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Werewolves will also spawn on a Full Moon (see moon phases ), and can be extremely dangerous as you can have a large amount of them onscreen at once (6+), especially when they apprear on a Blood Moon. Werewolves also drop a rare accesory called the Moon Charm. Wearing it on a Full Moon turns your character into a werewolf.

Trivia
The term 'bleeding affect' might be a reference from Team Fortress 2

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