Card Backs are used to decorate the backs of your hard-earned cards, each with unique art and a unique way to acquire them. Both players' card backs are visible while dueling.
You earn card backs by fulfilling various criteria, such as playing in Ranked mode and achieving a rank of at least 20. You will be rewarded with a new card back once the month's season comes to a close if you have met this criteria. Card Backs are purely decorative and does not affect the cards in any way other than changing the look on the reverse side of the cards.
The card back collection can be found in the Collection Manager. You can set a card back per deck you have built. If no card back has been selected for the specific deck, your favorite card back will be used.
Set a card back as your favorite by selecting the card back (right click on desktop), and then selecting 'Make Favorite'. If no favorite has been selected, the 'Classic' card back will be selected.
Hearthstone is a very popular game in Pandaria. Official card game of the Shado-Pan!
Black Temple Season 2 - May 2014
"Fel Flame Green" is always in fashion at the Black Temple.
Colors of the Rainbow Season 3 - June 2014
Unfortunately, the rainbow generator can only produce oval rainbows. Gnomish technology still has a ways to go.
Naxxramas Season 4 - July 2014
The gooey center is Ooze slime. Don't lick it.
Icecrown Season 5 - August 2014
In the frozen heart of Icecrown Citadel, a hero's mettle will be tested. Bring a parka.
Pirates Season 6 - September 2014
Treasure. Grog. Hooks for hands. Way better than Ninjas!
Hallow's End Season 7 - October 2014
The Hallow's End candy bucket! Or the Headless Horseman's spare head! Stick your hand in and find out.
Goblin Season 8 - November 2014
4 out of 5 goblins agree: This card back doesn't explode!
Gnome Season 9 - December 2014
This multifunctional device also works as a gnomish army knife, a show horn and a pass to the Deeprun Tram. Gnomish Ingenuity!
Maraad Season 10 - January 2015
Vindicator Maraad was a paladin of great courage and strength. Don't let the pretty pastel tones fool you.
Lunar New Year Season 11 - February 2015
Happy New Year!
Ragnaros Season 12 - March 2015
The Firelord is most often seen relaxing in his hot tub, even when he's trying to burn down the world.
Cupcake Season 13 - April 2015
"Is that a cupcake on a cake?" you ask? Yes. Yes it is.
Ninja Season 14 - May 2015
Stealth. Style. Shurikens. Way better than Pirates!
Darnassus Season 15 - June 2015
Nestled in the boughs of a giant tree, Darnassus is the capital city of the night elves. Also home of the world famous Darnassus Kimchi Pie!
Darkspear Season 16 - July 2015
Vol'jin's tribe, the Darkspear trolls, no longer practices cannibalism. Officially.
Tournament Grounds Season 17 - August 2015
All over The Grand Tournament's ground, you can find knights at jousting practice. Poor target dummies. So much senseless hay shed on the path to glory...
Exodar Season 18 - September 2015
The capital city of the draenei is actually a dimensional ship that crash landed on Azeroth after traveling through the Twisting Nether. Despite its wonders and Velen's best efforts, its tourism industry is sluggish due to its remote location (and possibly also the man-eating mutant plants).