The Ironworks Legend.

Whilst the dwarves were battling the dragon Nidhogg for control of their deep mountain mines and forges one of the walls was shattered. Upon inspection the entrance to a long forgotten iron works was discovered. Far from being ruined the iron works were in pristine condition; obviously they were hidden for a reason unknown to the modern dwarves.

Inside they found the molds to a most amazing set of metal dice. A design of strength and power not seen in many ages. The smelting fires were lit, mythical metals and other magical materials were gathered from the stores inside the works. The results were of legend.