Part of the Battlegear of Heroism set:

The set gives these bonuses as more pieces are worn: 2: +8 All Resistances. 3: Restores 15 health per 5 sec. 4: Chance on melee attack to heal for 88 to 132 and generate 10 Rage 5: When struck in combat has a 10% chance to remove a Disarm effect from yourself. Can only occur once every 60 sec. 6: +20 Strength. Set Details | All Sets

Quest Reward from:

Level	Name	Start	Rewards
60	Saving the Best for Last  (Dungeon) Horde and Alliance Ironforge	Deliana Ironforge	1650 XP
60	Saving the Best for Last  (Dungeon) Horde and Alliance Orgrimmar	Mokvar Orgrimmar	1650 XP

Disenchants into

Name	Value	Drop%
Nexus Crystal	1 Copper	100.0%