Twisting Nether

Twisting Nether is a post-Moon Lord crafting material that drops from Signus, Envoy of the Devourer. It can be used to craft the Cosmic Worm used to summon The Devourer of Gods, among various other items.

Trivia

 * This item's name is a reference to the Warcraft location of the same name, though it was specifically inspired by its Hearthstone card.