Tanithria's Sharpened Spritethorn

Source
This item can be found in Talismanic Textiles in Dalaran.

Tailoring

 * Embroidered Silkweave Robe
 * Silkweave Bracer: Outer Layer

As a quest objective
This item is an objective of the following quests:
 * Advanced Needlework
 * Secret Silkweaving Methods