Nightblood Is a Reflection of an Honorblade

Nightblood is like a returned and that he must consume breaths in order to sustain himself. Nightblood has of course then been copied again to create Azureblade. I don't know if it has another name. Yeah, maybe not a copy, but just like Nightblood 2.0. It's not to copy in a detrimental way. Just like we took what was there and made it better. Maybe give you a slightly different command.