[@Genni] Thanks for the questions! I knew I'd miss a few things, so I'll elaborate on those. And sorry about all these issues in my form, and if some things here don't make sense. Wrote this post pretty late, so I'm a little out of it. Class System: My bad on this - I probably should've went a bit more into detail. While his appearance would change, I feel like it would be limited to armour and equipment, depending on the class, while his physical body underneath stays the same. As for how they enhance Kai's abilities, I feel like it'd be closer to the second suggestion you stated there, that it pushes his body further in terms of ability, allowing him to run faster in a move-oriented class, or take more hits in a defense-oriented node... though, of course, not to such a degree that he'd outshine anyone who specializes in either of those abilities. On the topic of wings and gills, if he can create a gun, I guess those would be possible and maybe even fitting for an Adaption focused Birthed, but I'm not sure if that would be making him too powerful. Though, if he wanted to use gills or wings, he'd have to switch to an appropriate Class equipped with either, provided he has enough time to switch. Nanoweapons: In each of his classes, Kai has a set weapon or weapons. In the class in his sheet, he's only capable of using a sword and a gun in that class. If he wants to reform his weapons into something else, he'd have to wait ten seconds to shift into another class. In terms of what weapons the Nanoweapons could become: I'd imagine it mostly being ordinary weapons like swords, axes, lances, bows, the like, along with a few more uncommon ones like boomerangs and even staves. I could make a list, if needed. Nanos: Yeah, his excess nanites can be depleted via this method - kind of like an ammo system, now that I think about it. Bullet nanobots can be recovered and reduced to regular old nanobots, though they regenerate over time... very slowly, though. I'll address these in an edit, sorry about that. Personalities: I might actually get rid of this whole 'configurable personalities' part - now that I look back, it's a little unnecessary. But, yeah, the original concept was that a new personality would be added, and someone would be able to forcibly swap Kai between them, depending on how they're feeling. Though, this detail ended up being more or less Adaption Unit flavour text, now that I look at it. Not sure if I'll keep it... but if I do, I might just have to go through with the bleed part. Depending on how this goes, I might completely rework the abilities. I'm a little iffy on this set of abilities, now that I think about it - it feels a little too broad, I guess. Also, his name was originally Kal, but I really like Kai as a name, so I think I might just have to take that up as his new name.