Get yourself some nice, tasty pie!
 
With the arrival of October comes a new Ranked Season in Hearthstone. Titled "The Pie is Not a Lie," a clear reference to Portal 2's "The Cake is a Lie," you now have a chance to add an absolutely delectable card back to your collection.
Originally posted by Blizzard (View Original)Collapse

The October Ranked Play Season is now live – and we’re unveiling a new card back you can add to your collection!

We can think of 3,141,592 different reasons you would want to log into Hearthstone this month, but none could be more delicious than getting your very own Pie card back! Add this mouthwatering treat to your collection by playing Hearthstone during the month of October.

These card backs replace the art decoration on the reverse side of your cards and are a great way to show off your Hearthstone accomplishments (and make your mouth water). Add the Pie card back to your collection by hitting Rank 20 in either Standard or Wild Ranked Play modes. You’ll receive the Pie card back at the end of October’s Ranked Play Season in your Ranked Play reward chest.

You earn Ranked Play reward chests based on your highest earned rank over the course of a Ranked Play season. Reward chests may contain seasonal card backs, Arcane Dust, and golden cards, and can be obtained by playing in either Standard or Wild Ranked Play modes. You’ll be awarded one chest per Ranked Play season based on your highest rank between the two modes.

Don’t forget—the further you move up the Ranked Play ladder, the more bonus stars you’ll receive next season. In Ranked Play, you’ll receive bonus stars based on your performance from the previous season—one bonus star per rank you attained. Please note that even if bonus stars from the previous season get you directly to Rank 20 or above, you still have to log in at least once each Ranked Season to qualify for the card back reward.

So pull up a chair and dig in to October’s Ranked Play Season – The Pie is Not a Lie!