For Rk. III of Fadelure
"Elite Vendor
The elite supplier for Bertoxxulous' Chosen is Shelsy Shadestepper. To unlock the rank 3 versions of the above spells you need to complete all of the faction tasks below as well as the raid Crypt of Shade: Soulbleeder.
Raising Faction
You can raise this faction directly by killing the Aviaks and birds on the west side of zone, the mobs inside the graveyard area to the north, and the fire elementals on the ship in the bay. The following tasks also raise Bertoxxulous' Chosen faction:
Hills of Shade:
Making Up for Lost Time
I Would Exhume So
The Power of Decay
One of Our Own
Recoup from the Coop (Bertox)
The Perfect Omelette
Cartographical Nightmare
Bigger, Faster, Stronger, Dumber "