I have a question about the effect of this. 1. Does it have an effect on the runner's entire card ? if so 2. it count Virus Breeding Ground' s virus counter ?

Margins to fill the cell.

Margins to fill the cell.

8
Yes, it works for every virus counter you remove from every card, including Virus Breeding Grounds, Incubator, Friday Chip and whatever else has virus counters on it. —