100% Hit Chance
Spits poison into the target's eyes, reducing their hit chance by 100% for 1 round.
While affected, the target is considered both Blinded and Poisoned.
Drop: Imperial Python 
Zone: Timeless Isle
Approximate Drop Rate: 1 in 33
Profession: Engineering 
Taught By: [Schematic: Mechanical Scorpid]
Drop: Disturbed Podling
Zone: Frostfire Ridge, Frostwall, Gorgrond, Lunarfall, Nagrand (Draenor), Shadowmoon Valley (Draenor), Spires of Arak, Talador
Approximate Drop Rate: Unknown