Players can use Nebulous Voidcores to more easily obtain specific equipment whether they’re chasing best-in-slot items on their main character or looking to quickly gear up their alts later in the season.
Upon defeating a Midnight Season 1 raid boss or completing a Mythic+ Dungeon, Bountiful Delve, or Prey Hunt on Nightmare difficulty, players may choose to spend their Nebulous Voidcores to receive a random item appropriate for their Loot Specialization from that activity. After receiving an item in this way, it is removed from that loot pool until all eligible items have been obtained on a per-difficulty basis. For example, receiving the Ranger-Captain’s Iridescent Insignia trinket from the Crown of the Cosmos encounter in the Voidspire on Normal difficulty will not remove it from consideration on Heroic or Mythic difficulty. The item level of Mythic+ rewards from Nebulous Voidcores is equivalent to Great Vault rewards from that Keystone level, i.e., Myth 1/6 at Keystone level +10 and above.
Players can also purchase a Nebulous Voidcore from Vaultkeeper Elysa for six Thalassian Tokens of Merit. Nebulous Voidcores acquired in this way do not count against the weekly increasing cap.