Characters with this skill have the knowledge and ability to craft their own Master Rune. There are six restrictions:
- They must have access to one of the Anvils of Doom located in a Dwarfhold.
- They must dedicate 3D6 months (and expend 200 EPs per month) researching the desired effects and determining the correct shape of the rune.
- They must dedicate another 2D6 months (at the cost of 100 EPs per month) determining the correct combination of rare ingredients to power the new Master Rune.
- For the initial inscription, they must labour at least eight hours a day for D6+6 weeks.
- A specific amount of Magic Points (to be determined by the GM, using existing runes as guidelines) must be expended each day as the rune is being inscribed.
- The character must make a WP test at -20 to successfully inscribe the new Master Rune for the first time.