Occu'thar

Occu'thar is the second boss in Baradin Hold. Similar to Vault of Archavon, only the winning faction of Tol Barad has access to this boss.

Adventure Guide
''This ravenous demon broke free of its cage and gained access to the western wing of the prison, devouring all the inmates held there. Occu'thar's gluttony resulted in a body too bloated to escape its environs, effectively turning the prison wing into its new holding cell.''

It was originally one of the worst inmates. It had eyes everywhere and could conjure them at will. Eventually, it was killed.

Managing Searing Shadows
Searing Shadows is periodically cast on the tank. It does significant damage to the tank, so the tank should be willing to spend a short-cooldown defensive ability when he sees the casting bar. The second tank needs to taunt off the tank suffering from Searing Shadows before the next Searing Shadows is cast. A tank who gets blasted by Searing Shadows while still suffering the +100%-damage-taken debuff from the previous Searing Shadows blast will probably die without using a major defensive cooldown and massive healing.

That said, the other tank doesn't need to taunt immediately. The most common reason to delay the taunt is if the spare tank is suffering from Eyes of Occu'thar and needs to group up for the AoE.

Managing Focused Fire and Eyes of Occu'thar
Occu'thar alternates between Focused Fire (creates a puddle of pain and doom) and Eyes of Occu'thar (creates an eye-bomb on each player who is not the current tank).

Tactic 1: All the DPS forms a single pile. When Focused Fire is cast they all run to a designated second location and wait for Eyes to spawn. AoE down the eyes. When the Focused Fire is cast again, return to the first location. Alternate throughout the raid. This tactic has the drawback that the entire raid is taking damage while they evacuate the Focused Fire puddle.

Tactic 2: A location is designated for Eye AoE (common choices are a Raid Beacon or just "on the butt"). DPS splits into two piles who stand clear of the Eye killing zone. You want to prevent the Focused Fire puddle from overlapping with the Eye killing zone (The puddle has a radius of 12 yards, so be at least that far away). When Focused Fire is cast, group in the Eye killing zone. Wait for Eyes to spawn. Kill Eyes. Split up into Focused Fire piles again. This tactic has the drawback that inattentive players can cause the Focused Fire puddle to overlap the Eye killing zone.

Tactic 3: Designate specific player as the Eye gathering point (possibly using a Raid target icon). All DPS spread out and stay out of Focused Fire. When Focused Fire is cast get out of the puddle, then group up on the designated player and wait for Eyes to spawn. AoE down the Eyes. Spread out and repeat. This tactic can break down if the designated player dies. It also makes AoE healing ineffective.

If the inactive tank gets an Eye, he must group up with DPS and delay taunting until the Eye is destroyed. As long as he taunts off the active tank before the active tank suffers a second Searing Shadows, the raid will be fine.

Loot
The loot is randomly chosen from:
 * Tier 12 hand and leg items
 * Ruthless Gladiator PvP set and PvP offset items; neck, back, wrist, hands, waist, legs, feet, rings and trinkets.

Related achievements

 * Occu'thar (achievement)

Speculation
He may be related to Occul'tharon.