Warden

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A warden is a special kind of protector that keeps the system safe from malicitors, trechtors, and persecutors by keeping them 'jailed' within a section of headspace or otherwise dormant/incapacitated.

The term derives from the name of the chief officer in charge of a prison in the United States, and can be called a superintendent, governor, or director in other parts of the world.

Not all wardens are benign; some are corrupt or active persecutors themselves who jail other headmates in a misguided attempt at keeping 'order' in the system.