Warlock Gem

Warlock Gem is an item used to spawn the boss Baroness.

Spawning a boss
The Warlock Gem can be used on a Baroness Altar to spawn the boss Baroness. When used, the Warlock Gem is consumed and the boss Baroness spawns above the Baroness Altar. If the player's difficulty is set to Peaceful, then the Warlock Gem cannot be used.

Related Advancements
术士宝石