Obtain 9 piles of Obsidian-Flecked Mud.
Hope you're not afraid of getting dirty. Judging by the looks of you, that won't be a problem.
To the north, at the lava's edge, you'll find piles of dark mud. I need it.
It'd be best if you didn't ask questions, and focused your efforts on following orders, <name>.
You will receive:
[Obsidian-Flecked Cowl ]
You'll want to watch out for those
obsidian elementals. They have a tendency to sneak up on you.
This is exactly what we need.
Don't worry, <name>... the killing will come soon enough.
Stocking Up and before heading out. Head north. The piles are everywhere near the lava, including under the bridge.
 A Future Project
Optional breadcrumbs: or  Mouton Flamestar or  Hero's Call: Burning Steppes!
 Warchief's Command: Burning Steppes!
 Burning Vengeance
/  Stocking Up /  A Future Project  Mud Hunter
 The Sand, the Cider, and the Orb
/  Warlocks Have the Neatest Stuff  Shadow Boxing
/  Return to Keeshan  Return to Ariok
 Chiselgrip, the Heart of the Steppes
 A Needle in a Hellhole
/  Prove Yer Allegiance  Scrapped Golems  Golem Training
 A Perfect Costume
 Into the Black Tooth Hovel
 Grunt Work
 The Kodocaller's Horn
 Taking the Horn For Ourselves
 General Thorg'izog
 Trial by Magma
 I Am the Law and I Am the Lash
 Enough Damage For One Day
/  Morgan's Vigil  Flame Crest
/  Blackened Ashes /  Latent Demons of the Land
 A Heap of Delicious Worg
/  Blood Tour /  Draconic Vanguard  A Deal With a Dragon
 Placing the Pawns
/  A Delivery for Thorg'izog /  A Delivery for Neeralak  A Delivery for Xi'lun
 Locked and Loaded
 Assault on Dreadmaul Rock
 Glory Amidst Chaos  The Spoils of War Optional breadcrumb to Swamp of Sorrows:
 The Bogpaddle Bullet