Vibranium

A metal made by forging steel many times at increasingly high temperatures. It takes several fire enhancers to make the heat required.

The first vibranium ever made was done so by the church of the holy flame and was gifted to the king of the Midas empire as an unbreakable cup. When the church disbanded, many of it's members joined with ground enhancers to try and create vibranium weapons. The largest solid vibranium slab ever made took over 100 fire enhancers and was made for the SS Oceania, which only 3 days after leaving port was swallowed whole by a sea monster.