Greyheart Technician

Greyheart Technician can be found in Serpentshrine Cavern and Coilfang Reservoir. Greyheart Technician has 24,000 health and is vulnerable to all forms of Crowd control.

Strategies
A well balanced raid group will have enough firepower to AOE them all at once but focusing fire on 1 at a time works too if the Greyheart Technician is far away from the group or near a CC-ed mob.