Use 1-item restoration.

I have a whole retainer of ranked PvP gear now, with hellhound weapons and few accesoirces from events or deep dungeons. If you add relics and ultimate weapons, then you have like 20-40% of your glam dresser capacity filled with items you cant delete without getting them back easily or at all. Never was a friend of the system, it seems like a bandaid when what everyone wants is a skin log to unlock and be done with it.