I can agree with Nero wielding Yamato or Red Queen (devil arm and high-tech human sword) perhaps Blue Rose and a devilish firearm similar to Pandora/Artemis. Other than that, I seriously think Nero's devil bringer DOES make him a playable character with a lot of potential. Like I mentioned before, I liked that Dante & Nero were very similar to Megaman and Zero in the way they accepted demonic upgrades. I think Dante should acquire weapons and improve his styles, while Nero acquires multiple different forms (utilised with the style change button) for his Devil Bringer, giving him obscure but unique powers. Tbh I have a fan character (and fanfiction) in the works, and as a gameplay concept I imagine his default devil arm (like Dante's is Rebellion and Vergil's is Yamato) to be whip with aesthetics resembling a [demonic] chameleon's tail and/or tongue, and changing styles would allow him to grapple differently (for example, one style may give him a higher % chance of releasing green orbs from enemies slain with the whip) Back on track, my point is the thing that makes Nero a worthy character is his differences from Dante, mainly the fact that he doesn't rely on Devil Arms and Styles and has his own unique weapon against demons; his Devil Bringer. It's not something about Nero you can just ignore, and if it would be included (a definite yes) then to make the Devil Bringer mechanic worth putting in, it would have to be a primary ability of Nero's, even if it was able to differ in certain situations.