This chant tempers the soul of a single dwarf, making him a forge-priest and initiating him into the greater mysteries of the societies among dwarves. The ceremony of the tempering chant itself requires a vigil held in a temple of Moradin, and the words must be chanted both by the initiate and by a single master forge-priest; that is, a dwarven priest of 9th-level or higher or a smith with at least nine slots of smithing nonweapon proficiencies. If the saving throw is successful, the tempering succeeds and the initiate becomes a forge-priest. In addition, completion of the chant grants an additional slot of smithing proficiency and a +1 bonus to all saving throws against fiery attacks. If the chant fails, the initiate loses a point of Strength permanently and may not attempt the chant again until at least 10 years have passed.
The material components are a silver axe (100 gp), a flawless iron hammer (25 gp), and a small golden anvil (500 gp), all of which must be melted down during the course of the vigil.