Voidhunter Yar

Voidhunter Yar is quite possibly the easiest rare mob for players to find out in the Outlands. He can be found wondering around Oshu'gun in Nagrand. You'll find other Voidwalker looking things in the area but the armor on Yar will make him stand out amongst the crowd. If you're looking for something to farm as well, there will be no shortage of mobs.

Head in a counter clockwise rotation around Oshu'gun and you'll almost be guarunteed to run into him sooner or later.

Voidhunter Yar Spawn Locations