The current event “Grani and the Knights’ Treasure” has made it easier to farm materials such as Loxic Kohl and Grindstone. But who needs these materials?
Nobody wants to mindlessly farm so below is a list of operators that need either Loxic Kohl or Grindstone. This way you can determine if the operator you are trying to promote in the future needs these materials.
6 ★ Operators
First thing, make sure you can clear GT-6. If you need some assistance here is a guide!
*The upgradeable material section is where material like White Horse Kohl and Grindstone Pentahydrate go. These materials can be found in the mission stages but can also be created in the Workshop at your Base. (Workshop Lv.3) In order to make White Horse Kohl you will need Loxic Kohl and the same concept applies to Grindstone Pentahydrate.
*Every Elite Material requires 1 from the lower tier material. So if you need 6 White Horse Kohl you’ll need 6 Loxic Kohl in order to make it.
| Operators | Loxic Kohl | Grindstone | Upgradeable Material |
| Ch’en | ➔ | White Horse Kohl x6 | |
| SilverAsh | ➔ | White Horse Kohl x6 | |
| Hoshiguma | ➔ | Grindstone Pentahydrate x5 | |
| Eyjafjalla | ➔ | Optimized Device x5 | |
| Saria | ➔ | Manganese Trihydrate x5 |
✔ – needs material
➔ – used for upgradeable material
5 ★ Operators
| Operators | Loxic Kohl | Grindstone | Upgradeable Material |
| Texas | ➔ | Polyester Lump x8 | |
| Ptilopsis | ✔ x10 | ||
| Warfarin | ➔ | Optimized Device x5 | |
| Amiya | ✔ x10 | ||
| Skyfire | ➔ | ✔ x13 | Polyester Lump x7 |
| Projekt Red | ➔ | Manganese Trihydrate x7 | |
| Manticore | ➔ | Manganese Trihydrate x8 | |
| FEater | ➔ | ➔ | Grindstone Pentahydrate x8 and Polyester Pack x15 |
| Blue Poison | ➔ | Manganese Trihydrate x8 | |
| Firewatch | ✔ x15 and ➔ | Polyester Lump x7 | |
| Platinum | ✔ x15 | ➔ | Grindstone Pentahydrate x8 |
| Parmanix | ✔ x11 | ||
| Istina | ➔ | Optimized Device x5 | |
| Specter | ➔ | White Horse Kohl x8 | |
| Lappland | ➔ | Optimized Device x6 | |
| Nearl | ➔ | White Horse Kohl x9 | |
| Liskarm | ➔ | Grindstone Pentahydrate x7 |
✔ – needs material
➔ – used for upgradeable material
4 ★ Operators
| Operators | Loxic Kohl | Grindstone | Upgradeable Material |
| Scavenger | ✔ x20 | ||
| Perfumer | ✔ x19 | ||
| Jessica | ✔ x20 | ||
| Earthspirit | ✔ x7 | ||
| Dobermann | ✔ x11 | ||
| Estelle | ✔ x8 | ||
| Mousse | ✔ x8 | ||
| Frostleaf | ✔ x15 | ||
| Cuora | ✔ x10 | ✔ x14 |
✔ – needs material
➔ – used for upgradeable material
*If the operator you’re looking for is not on this list, chances are they do not need any Loxic Kohl or Grindstones.
Done Farming?
When you are done farming all the Loxic Kohl and Grindstone you need, don’t forget to do the other stages since those materials can be used in the workshop to create higher tier materials.