Well, inside the deck, there's viruses blueprints, which can ruin entire games. How to use? Just search the deck source, and you will see 3 (4?) viruses blueprints. You just have to copy it, and put in whatever game you want, to have fun from what will happen ;) (Note: Stay calm, this won't harm any deck without your permission. The viruses cannot harm your public decks)

Oh nice