Part of the Bloodvine Garb set:

The set gives these bonuses as more pieces are worn: 3: Improves your chance to get a critical strike with spells by 2%. Set Details | All Sets

Taught by:

Name	Source	Level
Pattern: Bloodvine Vest	Vendor	65

Created with Tailoring:

Skill	Recipe	Components	Slot	Source
300	Bloodvine Vest	x3 x5 x4 x4 x2 3x Mooncloth 5x Bloodvine 4x Powerful Mojo 4x Bolt of Runecloth 2x Ironweb Spider Silk	Chest	Recipe, Vendor

Disenchants into

Name	Value	Drop%
Large Brilliant Shard	1 Copper	99.0%
Nexus Crystal	1 Copper	1.0%