Nightbrace Tunic

Nightbrace Tunic used to be an excellent chestpiece for Molten Core, due to its Fire Resistance.

Arguably of the most benefit to Rogues, although a Feral Druid may get fair use from it as well.

Source
Nightbrace Tunic drops off Solakar Flamewreath in Upper Blackrock Spire. Drop rate is approximately 13%