This website will tell you how to obtain the oilstone formula for Rise of the Night Tribe. Recently, many players have been stumped by this problem. Without reading the guide, it is really time-consuming to figure it out on your own. Rise of the Night has recently added a lot of new content, the gameplay has been completely upgraded, and the new game experience is enough for players to explore for a while.
Answer: You can unlock the oilstone formula by defeating Armor Master Grayson in the game .
1. In the weapons arsenal of the thieves group in the western part of Farban Forest, there is Armor Master Grayson.
2. Just at the position of red circle 5 in the picture below.
3. Defeat Armor Master Grayson, level 1 spell point illusion, formula workshop floor, various storage racks, dummies and oilstones.