A Harnic god may grant a divine boon to a hero for some reason. These can be used at some later point to slightly improve the hero's chances, to introduce a slight twist to the story, or some other minor effect.
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.