An 'enchanted' metal formed from a dark ritual.
Appearance[]
Dark Iron is a normal gun metal grey, however, it radiates 'darkness' from the point of view of anyone. This gives it the impression of being darker than it actually is, practically black.
Nature[]
Dark Iron is normal steel that has undergone a process through a 'Blood Magic' ritual, causing it to darken and increase in durability. Dark Iron, after being shaped, typically reforms to its proper shape. Machine built of this substance, seem to 'regenerate'.