Just as WoTH has the capability to re-roll its armor the other raid armor should have the option to re-roll (at random of course) what its perks are. The other armor sets aren't intertwined with SIVA ("changes based on user's will") but, the materials that I suggest here have properties (lore wise) that would make sense to have the ability to change the perk sets on the other raid armor. How the drop rates should work: For each raid boss kill for the first time on each weekly reset; 3 should drop. For each raid boss kill for the second time; 2 should drop. For each raid boss kill for the third and onward kills; 1 should drop. Raid armor re-roll materials: Ascendant Shards = VoG armor re-roll Radiant shards = CE armor re-roll Taken Chrono-shards = KF armor re-roll