I know this is a speed/rush sort of deck vulnerable to the opponent's creature control or stalling (Poison by Parasites, Otyughs, Dimensional Shield, Rain of Fire, Plague, Thorn Carapace, etc) but 1-2 Fog Shields and Owl's Eyes wouldn't hurt this deck for controlling the opponent's critters as well.
It's situational, but would Mitosis help in this deck? With the quanta burst from an Adrenalined Damselfly, you could make yourself a self-replicating quanta machine or spam Wyrms... you're already at the mercy of CC, so more creatures couldn't hurt either.