1. It is kinda annoying there being so many elemental guns that would work great on him (Polaris and Argent Peacemaker) because they have mobility but they don't deal as much damage and the AP does not have a piercing counterpart which is rage-worthy.
2. Blitz Needle is too powerful on him, ruins how the fight works. Making him slightly resist piercing and normal instead of elemental and normal will get rid of this, as well as piercing not being extra effective.
3. He is undead... make RP sense.
What huge reason is there for why we keep him how he is now for his defenses? It is frustrating.
Where does it say he's supposed to be Undead? If anything his backstory (the twisted remains of a spirit) indicates he is a Fiend (as the Trojans, who have a similar back-story are.)