What is the berserker helm in "RuneScape"?

The Berserker Helm is a piece of armor worn on the player character's head for defensive purposes in the game "RuneScape." It is a higher-level item that requires the player to meet certain requirements in order to use it.

To wear the item, the player must have 45 in the defense stat and have completed the quest "The Fremennik Trials." Once those two requirements have been met, the player can purchase it in Skulgrimen's Battle Gear, an armor shop located in Rellekka. The helm can also be found as rare loot by defeating Dagannoth guardians or Dagannoth himself, both in the Chaos Tunnels and at Waterbirth Island.