Update 8:43 PM EDT: Added the official patch notes.

Update 8:20 PM EDT: Patch 10357 is now on the Battle.net Launcher available for download.

Update 3:30 PM EDT: The bug with opponent cards not showing spell power appears to have been fixed.

Update 2:40 PM EDT: Added more tavern brawl cards!

Update 2:30 PM EDT: Added note on TGT search in collection manager and new emotes.

New Hearthstone Patch - The Mech War Tavern Brawl

HELLO HELLO HELLO!! A new Hearthstone patch has appeared on the Hearthstone servers with details on a new tavern brawl!

TGT is now available to use as a search phrase in the collection manager.

The bug with opponent cards not showing spell power appears to have been fixed.

It also appears that Hearthstone has upgraded their engine to Unity 5.

This may not be tomorrow's Tavern Brawl. The Patch is now live.

The Mech War Tavern Brawl

A new tavern brawl is on its way which introduces the Annoy-o-Tron vs Boom Bot Tavern Brawl!

Both of our new mechanic Tavern Brawl heroes have custom emotes, but, they don't actually say anything other than their "EnterPlay" sound effects when any emote is used. If your opponent is playing as Annoy-o-Tron, you may want to hit that squelch button.

New Card Animations

We've recorded a video of all the new card animations added in today's patch. Watch below!

New Animated Card Backs

The ESports Power Core card back has been unveiled in it's animated glory this patch, as has the September ranked play card back, Exodar. You can learn more about the Power Core card back from this blue post.

Power Core : We can feel the energy in the air. And it's coming from... YOU! Acquired from attending approved eSports events.

: We can feel the energy in the air. And it's coming from... YOU! Acquired from attending approved eSports events. Exodar: 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). Acquired from achieving Rank 20 in Ranked Play, September 2015.

New Tavern Brawl Cards

A number of new tavern brawl cards have been added to the game. A lot of old adventure hero powers now have a tavern brawl counter part. Enchantments may be displayed on cards which are on the field, or can be used for some kind of internal tracking. Enchantments don't have associated card images or card text.

Official Patch Notes