Bloodstone

"The calamitous beings have been inundated with bloodstone."

Bloodstone is a post-Moon Lord crafting material dropped by Brimstone Elemental, Calamitas, and enemies in the Brimstone Crag, only after Providence, the Profaned Goddess has been defeated. Additionally, it can be obtained from Necromantic Geodes dropped by the Ravager post-Providence.

It is used to craft Bloodstone Cores.