Not sure if this is the right place to put this.. but it is a bug..just with Silverfish not core. At the very least other people can read this and possibly avoid the issues.

Freeze mage deck. First, it freezes the main opponent then tries to shatter a dire wolf alpha..which obviously won't work since it froze the other target. Had to shut off the program after that..it tried to hit end turn and failed. Log for that is here: http://pastebin.com/0gXca9um - I tried again while typing this up and it just keeps trying to shatter things that aren't frozen... even when there's nothing frozen.

C'Thun Druid ramp deck. Druid seems to constantly have issues with not clearing the board with his hero power. He'll use it..get the 1/1 attack/armor then pass the turn instead of clearing a 1/1 or 2/1 etc. Tried Default, Druid, and Rush. Rush will occasionally at least face the guy and I'm assuming if I edit min to face on Default it would do that as well. Rogue clears trash fine and it's the same basic concept. Here is one of the logs: http://pastebin.com/A6na9u4H - It says a few times that it used the Hero power.. which it does..but it never even attempts to attack anything with it unless it's face late game or empty board.