Mythril is a rare, hyper-strong metal found in small pockets, usually very deep
underground. Resembling silver in color and feel, it has a hardness close to
that of diamond and an ability to absorb Mana on par with a good, refined
spesix.
Due to it's rarity, only the most expensive weapons are made from the material.
A ring made of mythril, for example, can run well into the tens of thousands of
Argentum!