Coagulated Nightwell Residue

• Coagulated Nightwell Residue
• Mythic
• Item Level 50
• Binds when picked up
• Unique-Equipped
• Trinket
• +9 Mastery
• Equip: Your attacks have a chance to grant you Nightwell Energy, stacking up to 10 times.
• Use: Consume all stacks of Nightwell Energy to gain a shield for 15 sec that absorbs 89,880 damage per Energy consumed. (20 Sec Cooldown)
• Requires Level 40
• Sell Price: 47 19 23

Source

This item drops from Corstilax in The Arcway.

Patch changes

• Patch 7.0.3 (2016-07-19): Added.
  

External links

• Wowhead
• WoWDB