http://www.pcgamer.com/blizzard-will-reveal-a-nerf-to-hearthstones-druid-class-this-week/

If you've been watching Hearthstone's HCT Europe Summer Playoffs this weekend, you'll have noticed a distinct lack of Druid. Not because the class isn't popular—quite the opposite, everyone of the 77 players participating brought a Druid deck—but because it's so good they've all been banning it. We wrote about the Druid problem earlier this week, predicting that multiple nerfs were on the way. And it sounds like that's about to happen, judging by this tweet today from game director Ben Brode.  

The Druid class got an unwarranted buff from the cards in the Knights of the Frozen Throne expansion, with Malfurion the Pestilent, Spreading Plague, and Druid of the Swarm all providing a significant power boost. So much so that according to Vicious Syndicate's most recent support, Druid decks now account for more than 30% of the ranked ladder. By comparison the next strongest class is Priest, at just below 14%, while poor old Rogue brings up the rear at a paltry 5%.