I had stopped when the initial cards came out. I found that it complicated the game, quite unnecessarily. The game was able to be explained in 5 minutes before, and begin game play right after. Now you have to explain the original game, as well as these tokens, and all these assortment of cards, such as BYSTANDARDS and POWER CARDS. Yeah, that made me leave the game...
There used to be a HeroClix dedicated fan site - had a great forum. You might have better luck there, unless someone else chimes in about HeroClix here...