Hourglass Sand

Source
This item drops from:
 * Blackwing Technician in Blackwing Lair
 * Death Talon Overseer in Blackwing Lair
 * Blackwing Spellbinder in Blackwing Lair
 * Blackwing Warlock in Blackwing Lair
 * Master Elemental Shaper Krixix in Blackwing Lair