He was too fast in editing <| sep |> It make . Look at the stats , 350 spell damage , 1000 health , perma spell power buff . On a mag class this is gold because you free a slot to put another skill , and as magDK , we all know that often we renounce to wings or mist form on the back bar to slot entropy , rattlecage let us to free these slots making our life easier . Plus , rattlecage offers a good amount of spell damage and resistances , allowing a magicka build to use something like burning spellweave , desert rose , LICH set or others magicka regeneration sets . I personally run a 5 rattlecage and 5 burning spell weave , when i proc burning spell weave i reach 3000 spell damage with tristat food and 1600 recovery , this is why rattlecage is one of the best solutions for pvp . OFC if you don ' t suffer the lack of slots like me , you can use 5 seducer , but there isn ' t another heavy armor set for magicka atm