Raid boss in mausoleum

[Nocturnus]

Raid boss after m6 similar to the cryostar system, which opens killing bosses and mobs in all mausoleum. It could be a last fight with Corvis Lich and his troll, extremely strong and that brings mobs into battle like Mishapen.
Let him drop some vanity or set with wings that matches the halo of the quest, maybe make the voice vanity set and add some big angel wings with two styles dark (purple) and luminous (white). Also that the whole set equipped with an aura on the floor like the cryo set, the color of the rank if you are dark violet and if you are luminous white. Thank you anyway.