I'm not even sure if that level 55 Pink ring even exists anymore. Besides using a level 55 Pink that isn't Halgi in 86 cap is kind of silly especially since there's better rings now. I think they changed the effects on that cape. I know it's level 78 now because Silver Dragon Tournament is level 77 dungeon now. Not sure if it's worth it because you have to run the Silver Dragon Tournament a ton to get it and Shadow Dancer doesn't really benefit from farming there (Refine materials are wasted because she's pure Percent Damage and inflicts no Statuses that would benefit from refining). Also she already has a Camouflage Skill that Taunts enemies. Sneaking isn't really a huge problem.