Death Speaker Jargba

Death Speaker Jargba is a level 27 elite quilboar found in Razorfen Kraul. Jargba is a Death Speaker, a prophet of the Quilboar religion which preaches their fallen god Agamaggan will rise from the dead. As such, he is a combination of priest and powerful warrior.

Strategies
Jargba can mind control members of your party. The best class to take along for this boss is probably a warlock, as he's probably the only boss in this instance who is not immune to fear. Just have a warlock charm one of his guards and use Curse of Tongues on Jargba. Keep Jargba under continuous fear while the rest of the party first kills off his guards.

But remember to clear the area of any possible adds first, because Jargba is quite the mobile little chicken when he's terrified.