What were the 4 errata cards that were spoken of resently and what did they change, is there a link to a post. Thanks
You can see the cards in this news post
The basic clarification is that those cards must be do damage to stick around. If you bought a new, new copy then you probably have the eratta cards in your game.
You can check which printing you have, the newest ones have © 2011-2013 on the back (as opposed to 2011-2012)