The Darkrune Helm is Blacksmith-made plate helm that provides a stamina bonus as well as resistance to shadow magic. The helm will be helpful for tanks in areas where the enemies cause shadow damage.
The Darkrune Helm is crafted by Blacksmiths with a skill level of 300.
The pattern is received in the mail by turning in Encrypted Twilight Texts to Hermit Ortell in Silithus. There is a small chance he will mail this pattern to you.