There's a few. Confusion is different now. You can retreat normally with it, but if you attack and flip tails, you get 3 damage counters. It's worded so that self weakness doesn't kill you and you can't use Defender to stop it. Also, you can only retreat once per turn now. Oh, and whoever goes first doesn't draw and if you Mulligan, your opponent only gets 1 card now. I think that's it besides the MRPs.