BG3: The Necromancy Of Thay And Alternative Method for Permanent Quasit Summon Shovel!
This video shows all the rewards for using the Necromancy of Thay including a portion of Act 3. There is also a way to unlock the Cheeky Quasit Shovel, Fork, Or Basket but you cannot rename them this way.
Break into the Sorcerous Sundries Vault and find the codex!
Unlock Speak with Dead, Forbidden Knowledge, and Danse Macabre by diving into this cursed tome!
Or destroy it and fight off the shadows!