You know what that's my bad. While their ability to build just makes sense in case they are damaged, I realized that I was mixing the abilities of his "cloak of air," with the abilities of the nanites on accident. Nonetheless the only thing that changes is that his nanites can be destroyed by yours. However my issue is only changed because of it. The issue is those banites have been replicating for 2-3 of my posts if not longer and you made no effort to destroy them till I used them to attack. Additionally when they attacked none of the ones in the cloud approaching him should be in contact with his mibs so him annihilating them before they make contact isn't terribly reasonable.

Destroy a good portion, sure. But all of them in one fell swoop I think not. Especially since they are still replicating and are equipped with highly sensitive cameras. So they'd be able to feasibly dodge since usually their processes are largely automated anyways.

Out of curiosity are your mibs immune to most forms of attack?