To allow a player a definite downtime from the game without the worry of an alliance planning ahead and porting on you as soon as your shield is up. So practically its combining the use of a shield + Random teleport.
The mechanics is easy
-User uses item, he gets ported out of the kingdom map for a set duration of time (This is to prevent bugging the system by having a castle teleporting on and invisible castle by chance)
-during this time he is unable to farm nor attack or participate in events. The only function he has left is to view the kingdom and/or chat.
-After the duration is up, user will be randomly teleported back OR he can do it before the duration is up by a cancelling option or manually using an advance teleport.