It took him around two hours to calculate and create a functioning rune matrix. The results were very interesting. Valyrian steel weapons were made of eight parts crucible steel and one part dragonglass, melted by magical flame. The dragonglass was not only actual obsidian but also had the dual properties of fire and earth elemental stones. The resulting alloy was folded repeatedly. Each time, a spell was woven directly into it and anchored by a human sacrifice - sharpness, lightness, and invulnerability. It was rather crude but quite effective. He had tried to find out the creation process of goblin-wrought silver multiple times, but to no avail. That had been their best-protected secret, and when the goblins were destroyed, the secret went with them to their graves.