The Swarm Drones are essentially Swarm Turrets with drone behavior (i.e., move randomly). They can move as fast as knights can. Unlike the turrets, they are not indestructible. They deal normal damage and are neutral to all damage types. These drones are the primary combat form of the Swarm.
What think you?
With the art concept already out (in general discussion forum) it seems that it could work. Did you base it on those? Don't know about "primary combat form" of the Swarm, being the chaotic thing that seems to be though. Also, you can post this here http://forums.spiralknights.com/es/node/30645 if you want too, if you like (a suggestion I made to expand the Swarm idea to Clockworks and related ideas too, sort of).
You get a +1 from me.