A ring Darkness ÄRM which creates a chain binding the user and the opponent, used to wear out both's magic by draining their blood. Should this ÄRM be used for a long enough amount of time, both the user and his opponent may die. In the anime (to cut down on the violence) this ÄRM instead liquifies and drains both persons' magical power. However, it will still kill both with prolonged use in this version. Used by the Knight Ian. Demonic Bond 2.png|Demonic Bond's ring