Dropped by Salyin Warscout, level 35 Rare in Valley of the Four Winds with 15% drop chance. Use: Blend into the shadows for 1 sec and summon a Salyin Warscout. The Warscout will draw the attention of nearby monsters and run into the distance. (10 Min Cooldown)
Edit: this item is now a toy and is now only usable in Pandaria.