by EarlyFlash
I think that the full rules have been posted in the 'files' section - if you haven't seen them, that's a great place to start... :)Essentially its' a bunch of 'optional' things that you can choose to add to the game if you want to.
If you really are experienced then it can shake things up - if you are still a bit of a novice (as I am), then it's probably overkill.