I had a duels game where a druid played a new cthun that didn't bother breaking into parts on turn 6 or 7. Dealing 30 damage.
Normally when "illogical" things happen I figure out how it happened. In this case I have no idea.
Is this a known bug?
And because I know someone will bring it up, no he didn't play a single piece of cthun previously.
And yes, uninstalling hearthstone was my immediate thought after this happened.