Hungering Claw
Sold by Horos. Thousands of years ago, ten magisters were exiled from Highborne society for seeking power in the corrupting darkness. In the wilds, they found hun... Magic type.
The 
Hungering Claw is a Legion pet that summons a purple tentacle companion, obtained as a world quest reward by attuning your character and summoning Kosumoth the Hungering at the Eye of Azshara island on the Broken Isles.
Guide awaiting review
Speak to Drak'thul
Find Drak'thul at 37.19, 71.65 on the Broken Shore and talk to him to begin the attunement process.
Retrieve the Weathered Relic
Travel to the cave at 58.5, 54 on the Broken Shore and click the Mound of Dirt at the end of the cave to obtain the 
Weathered Relic. If a rock is blocking the path, relog to clear it.
Return to Drak'thul
Bring the Weathered Relic back to Drak'thul at 37.19, 71.65 on the Broken Shore, give him the relic, and continue talking to him repeatedly until he asks to be left alone.
Activate Orb One
Enter the cave at the base of the tree at 37.95, 37.43 in Azsuna and click the first orb inside. Each orb has a 50-minute respawn timer and can only be used by one player per spawn.
Activate Orb Two
Travel to 63.06, 35.53 in Suramar and take the path up the cliff to reach the cave entrance at 32.86, 75.77 in Stormheim. Be cautious of the level 111 mob guarding this area, then click the second orb inside.
Activate Orb Three
Head to 41.5, 81.16 in Val'sharah and enter the cave. A level 110 Elite mob is inside, so clear it before clicking the third orb.
Activate Orb Four
Go to the cave entrance at 29.27, 78.37 on the Broken Shore and click the fourth orb inside.
Activate Orb Five
Find the cave entrance at 59.33, 13.09 in Azsuna and click the fifth orb inside. The cave entrance is located beneath a neutral shark in the water.
Activate Remaining Orbs
Continue activating orbs six through ten in order across the remaining zones. The final orb is located at 37.19, 71.65 on the Broken Shore, which will summon Kosumoth the Hungering and unlock the world quest to obtain the Hungering Claw.
Complete the World Quest
Defeat Kosumoth the Hungering at the Eye of Azshara island on the Broken Isles and complete the world quest reward to receive the Hungering Claw. Simply killing Kosumoth without completing the attunement steps will not reward the pet.
Tips
See the video guide for a visual walkthrough of the cave locations and orb activation sequence.
The Hungering Claw is a world quest reward and the quest resets weekly, so if you do not receive the pet you can attempt again the following week.
