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Normally found standing guard at the gates of ruined fortresses, Doublurk are passive guardians provided no hostile act is performed in their presence. Their stoic demeanor belies their fierceness, leaping to action at the first hint of violence.

It is said that Doublurk were ordered to protect people and Pokémon by the ancient people who made them. The complex attack patterns of its two swords are unstoppable, even for an opponent greatly accomplished at swordplay.