Part of the Blue Dragon Mail set:

The set gives these bonuses as more pieces are worn: 2: +4 All Resistances. 3: Increases damage and healing done by magical spells and effects by up to 28. Set Details | All Sets

Taught by:

Name	Source	Level
Pattern: Blue Dragonscale Breastplate	Vendor	57

Created with Leatherworking:

Skill	Recipe	Components	Slot	Source
260	Blue Dragonscale Breastplate	x28 x30 28x Rugged Leather 30x Blue Dragonscale 1x Cured Rugged Hide 1x Rune Thread	Chest	Recipe, Vendor

Disenchants into

Name	Value	Drop%
Large Brilliant Shard	1 Copper	100.0%