The Resurrection Circle heals HP and End by 25%. By adding 2 Spirit Signal items (unlocked by the Robo-Surgery Plans Badge), these values can be increased to 45%. A primary advantage of having one of these active in a Super Group base is that, when defeated, you are given an extra option: to go to your base. This is valuable because you are returned to the zone you came from upon exiting the base, instead of the zone of the nearest hospital.