This spell transforms an ordinary piece of iron into metal with a number of unusual properties. The material becomes invisible in sunlight and glows when unsheathed in conditions of darkness, whether that darkness is magical or natural. The metal created by a dark alloy chant, called dunchalcor (and known simply as “dark steel” in the FORGOTTEN REALMS® setting), is often used to make secret runes for dwarven shrines. The metal is also used as filigree in special weapons, denoting a weapon's maker, its bearer, or even its special powers. Dunchalcor is a necessary material component in the pech chant.
The material component of the dark alloy chant is an ounce of mithril