Racial Advantages: Scientific Talent, Nerves of Steel
Racial Disadvantages: No-nonsense, Elemental Weakness(Sound)
Nano-Reconstruction X: The nanites that compose a Nanoswarm's body are able to constantly repair damage much faster than most creatures. Every hour, they regenerate X hp in damage, not bringing them over their normal HP.
Pass Through +X: Every day, a nanoswarm can detect incoming hits from certain weapon types and rearrange its nanites in such a fashion that they're likely to be completely missed. They may distribute their Pass Through bonus as they wish between any number of active dodge rolls against Smacky, Slashy, Pokey, or unarmed attacks.