Black tourmaline core
The blackened heart of the Grotesque Guardians.
How to get it
| Monster | Quantity | Rarity |
|---|---|---|
| Grotesque Guardians | 1 | 1/51 |
| Dusk | 1 | 1/51 |
Rates are per drop-table roll. A kill rolls the table one to three times, so the real per-kill chance is a little better.