Shok'sharak is a non-elite level 82 Faceless one rare spawn with approximately 67k health who spawns in the Abyssal Depths in Vash'jir. He can be found in a few locations in the Scalding Chasm which is south of Promontory Point. The locations are shown below in green. As you can see on the map, I found him at the western most spawn location.
Shok'sharak drops Sussurating Treads of Shok'sharak, a nice bind on equip item level 346 plate caster boots. On my server they sell for approximately 400-500 gold. He also drops around 20 gold and for leveling characters killing him yields a hefty amount of experience (around 50k xp non-rested at level 82).
He is a very trivial mob with no crazy special abilities. He does a mind flay, shadow crash and a shadow nova. Anyone questing in this zone should have no issues killing him.
He is also one of eight rare spawns in Vashj'ir. All of them are:
- Ghostcrawler (Spirit Beast Crab) - For lvl 85 BM hunters, can not be killed
- Mobus <The Crushing Tide> - Group Boss, drops a nice epic polearm
- Poseidus (Sea Horse) - Drops Reins of Poseidus, a bind on use underwater mount
- Shok'sharak - Faceless one, drops some booties
- Lady La-La - Drops a nice level 80 healer trinket