Custom Warcraft RPG - "Dark Shaman" or "Witch Doctor" as the third Shaman spec?

Hey r/warcraftlore, I'm back. Last time I made a post asking for feedback on class designs for my custom Warcraft RPG, based off DND 5th Edition.

Each class has two-three specs for further customization. I've got two of the three specs mapped out for Shaman: Primalist (enhancement) and Stormcaller (Elemental) (Restoration is not a spec, healing is baked into the other specs).

My third is essentially a Dark Shaman/Witch Doctor: Hexes, Voodoo Dolls, Shadow, Illusion, and Blood magic, exploiting the Spirits for iniquitous ends.

In the lore, Witch Doctor is a troll exclusive, minus a few lucky orcs that were taken as apprentices by the Darkspear. Dark Shaman seems like the more appropriate term, but it's kind of... well, bland. "Witch Doctor"'s got oomph.

So, which name should I go with? If neither, what do you think? Spiritwalker? (Though "Spiritwalker" is a feature of the base class, allowing for communion with spirits and using Ghost Wolf).