Title is a bit of click-bait, but lately I've been running zero (or maybe one) parasites in my decks and it's been to good effect.
Andy Deck (I switch back and forth between adding a second Corroder in place of the Parasite)
In both of those decks I've found not playing (or using) Parasite to do 2 things:
- The corp installs less ICE because it's more expensive to do so
- By the mid-game you generally have 2 ICE rezzed in 2 or 3 servers, so you can easily calculate how expensive a server will be to run.
Now, there are definitely drawbacks and both of those decks above are still "experimental" and in the testing phases. However, with an efficient breaker suite and clickless econ you can usually stay ahead of the corp. Usually when a corp rezzes a pop-up, or tsurugi, or pup, they are just expecting you to kill it, and then can then lay down a new ICE for free and you'll have to deal with that one. Instead, that Pup will stay alive all game and be fairly taxing, but it also taxes the Corp if they want to install new ICE in that server.
Anyway, it's probably not optimal, but I've been playing around with it and it's been much better than I thought. Thoughts?