Finish Nemesis
Use the Totem of Tortolla and the help of a Child of Tortolla to defeat Nemesis. See Garunda Mountainpeak if you lose your turtle companion.
Was doing this quest on my Highmountain Tauren Warrior.
I had the turtle companion with me the entire time, but the Totem of Tortolla was greyed out on my action bar and i couldn’t click it in my inventory nor use it in the quest tracker.