Ok so I wanted to make this thread to discuss how a human could use a Devil Arm, my idea is they have to be proficient with that style of weapon example Lady could use Pandora?? Her beyond expertise in firearm based combat would make her a viable owner for the devil arm
now some DAs are too strong for human use such as alastor and ifrit they pretty much kill the weak that try to use them, and only get used by those with the ability to survive them like Dante
But demons that turn into devil arm .. That's another story cause they transform as a sign of respect in defeat all except for the demons in 4 and Beowulf so say a human trained to fight them beats agni and rudra? Could they then use the twin blades?