Yeah it SUCKS when this kind of thing happens. I was playing against a hunter yesterday and he threw out one of those bears that can be up to 3/12 with taunt. I played a silence and then went face with the rest of my minions. Next turn he cubes the bear I silenced and then plays a 1 or 2 mana spell that triggers deathrattles and next thing I know he has TWO 3/12 taunt bears AND STILL HAS THE CUBE! I'd NEVER seen that deck before but MAN was I salty!