The Oathnut, also referred to as the warming mushroom, is a truffle and not a nut. It can be found, albeit rarely, in the Mimean and Mineous Forest hundreds in Kanday and even more rarely in other forest regions of Hârn.
Tahnarism is the ability to manipulate a portion of the Anti-Principle (the "force" present in Bukrai) to accomplish tasks. It is an attempt to introduce necromantic magic into Hârn that does not rely on the Morgathian Church and its pre-occupation with death.
This eight page article expands on the updated release of Zerhun by Columbia Games Inc., adding detail to "one of Hârn’s most impressive engineering achievements.”
The Oathnut, also referred to as the warming mushroom, is a truffle and not a nut. It can be found, albeit rarely, in the Mimean and Mineous Forest hundreds in Kanday and even more rarely in other forest regions of Hârn.