What I tried to do, in my case, would be to look for all states and create a spell that removes them, I don't know if there is in the Nexus repertoire. But with some expertise you could do it.
Even allied I think it would be complicated, but diverting it could be possible to modify projectiles, perhaps with a state that transferred the damage could be simulated, such as the clergy spell.
In theory you can create, the problem would be the model.
Now you could do in the simplest way that would be adding the unarmed attack of the left to the Ptincipal damage (something that I apply in my mode of animations for two weapons) since giving it an animation that triggers a second attack is quite complicated.