-1 death pend +1 damselfly to fullfill a 1:1 ratio between damselflies and freedoms I think for it to be optimized according to draw chances. Also fractal retrovirus isnt too expensive, so I feel like you have extra death anyway. The skyblitz also leaves room for others to modify the deck how they want. Personally i would take out one virus, and the sky blitz and a pend for +1 damselfly, +2 vulture. Vultures are airborne too.