Sextant of Unstable Currents
Binds when picked up
Unique
Trinket
Requires Level 70
Equip: Improves spell critical strike rating by 40
Equip: Your spell critical strikes have a chance to increase your spell damage and healing by 190 for 15 sec.

Source: Serpentshrine Cavern
Boss: Fathom-Lord Karathress
Drop Rate: Low (15% - 24%)