From kan-ra’s story:
“His hubris led him to orchestrate a conspiracy against his monarch that involved a wealthy noble, a general, a bandit, and himself. The King, much wiser than the conspirators, was well prepared for this betrayal. He used all the powers at his disposal and the darkest magicks he could conjure to curse each of the four, damning them with unique punishments.”
The bandit is spinal. What if the wealthy noble, the general and the king are new characters? I think the general in kanra’s story is eyedol, possibly once human but transformed/cursed by the king. Tusk could possibly be either the general or the noble… or is he the king. I’m assuming the king is good since kan ra (who is evil) tried to kill him, unless both are evil.
Also, I have a feeling that tusk is the noble. Check out his gearpunk accessory set. A noble is basically a rich person:

Doesn’t he seem a bit like a wealthy noble?