by frotes
That's a good example for PI + RL. It would be good to list additional resources/tech/bonuses needed for each opening. I have done so for #2/3 in my exampleI think it's reasonable know which round bonus could be used as well as additional power actions. Those are the 2 things that will determine if you can do an opening or not since they are the most likely to be blocked
Like in a 4p game, there usually isn't enough round bonus and power actions to allow each player to pull off the same opening