Hearthstone Update – September 10 – Tombs of Terror, Changes to Discover Mechanic, Better Wild Auto-Deck Builder

A new patch was just released with Tombs of Terror pre-load. Two first chapters of adventure launch next week (September 17). Tombs of Terror will be another twist on the already classic Dungeon Run solo adventure. In terms of scale, it will be similar to the previous Dalaran Heist, but it will feature new Heroes, Hero Powers, treasures, bosses as well as a bunch of other things.

However, the most important part of this patch for now is something else – we’ve got some changes to how Discover mechanic works. Until now, when cards were discovering from a random pool that included both Neutral and Class cards, the latter had a 400% offering rate. The bonus is now gone completely and every card has the same chance of appearing. This is actually a quite significant nerf to a lot of Discover cards. For example, Stonehill Defender was very popular in Paladin because of the bonus offering rate – without it, it most likely wouldn’t see nearly as much play in the class. It’s also a nerf to the Omega Assembly as well as Dr. Boom, Mad Genius “Discover a Mech” Hero Power. Warrior class Mechs were often the best options, getting another Omega Devastator, Dyn-o-matic or Tomb Warden was highly preferable over getting an average Neutral Mech. Similarly, it’s a nerf to another new staple Warrior card – Frightened Flunky (which is basically a 2-drop Stonehill Defender). It now has a much lower chance to get another Flunky (which resulted in a re-roll), Armagedillo or Tomb Warden. The changes have a far bigger implications on the game in general than a nerf to any single card, since we’re usually getting a few new Discover cards every expansion.

Another change is that the Wild automatic deck builder should be smarter. The truth is that it didn’t work really well before, despite the functionality being quite solid in Standard.

For full patch notes, check out the official blog post below:

Enter the tombs… if you dare. The Tombs of Terror are opening soon, and we’re relying on the League of Explorers to put a stop to the misguided miscreants and powerful plague lords unleashed upon the world by Arch-Villain Rafaam and his League of E.V.I.L.

Read on for details on everything that’s coming in this update, including the new solo adventure, card changes, game updates, and more!

Tombs of Terror! – Chapters 1&2 Launching September 17

Hearthstone’s newest Solo Adventure is just over the next dune! Here’s what’s in store for you in the Tombs of Terror:

  • Dual-Class Heroes! 
    Even if you’re a legendary Hero, defeating world-threatening plague lords and powerful evil leagues takes a little extra effort. Whether by redoubling their educational efforts, wrestling with the martial arts, honing their holy pursuits, or pilfering some powerful magical machinery, Elise, Brann, Finley, and Reno have spent their time in the desert honing new crafts and preparing for the people’s cry for heroes to save the day. Choose one Hero and have access to cards from two classes, along with some brand-new Hero Powers and treasures!
  • Plague Lords!
    Massive murloc amalgamations, maelstroms of whirling madness, and just… Straight. Up. Death. The League of E.V.I.L. has unleashed powerful plague lords onto the world, and it’s up to you to stop them! These larger-than-life monstrosities have gigantic persistent health pools. So, while you probably won’t take them down on your first attempt, you’ll pick up where you left off on the next run!
  • Powerful Signature Treasures!
    A good explorer always comes prepared. Dig into your pack of tools and start your run with a powerful treasure of your choice. Unlocked by completing challenges and bosses during your runs, your pack will fill out with tons of magical loot and powerful cards as you progress through the Tombs of Terror.

Pre-Purchase Tombs of Terror

Get the limited-time Deluxe Adventure Bundle to claim your Card Back and random Saviors of Uldum Legendary!

  • When the Tombs unlock on September 17, the standard Adventure will be available at a lower price, which excludes the Card Back and random Legendary.

Chapters 3, 4, and the Grand Finale (included with Chapter 4) will be released in the following weeks.


Smart Deck Builder Goes Wild!

The smart deck builder can now create or complete Wild format Decks. For more information on the smart deck builder, check out our Dev Insights blog here.

  • Please note that this feature is still in active development and you may encounter unexpected results.

Card Backs

The following Card Backs have been added to the game:

  • Titanic Tasks: Acquired by completing Tombs of Terror on normal difficulty.
  • Tomb Invader: Acquired by completing Tombs of Terror on Heroic difficulty.
  • Darkmoon Faire: Acquired by winning 5 games in ranked mode during the October 2019 season.
Titanic Tasks -- Acquired by completing Tombs of Terror on normal difficulty.
Titanic Tasks
Tomb Invader -- Acquired by completing Tombs of Terror on Heroic difficulty
Tomb Invader

Darkmoon -- Acquired by winning 5 games in ranked mode during the October 2019 season.Darkmoon

Game Improvements and Bug Fixes

  • Discover:
    • Cards that Discover from a random pool no longer apply a class bonus. As Discover pools have gotten more specific, some are too narrow and repetitive. This change will increase the variety of cards from random Discover pools.
  • Fixed an issue causing the mouse cursor to become the eye cursor after exiting the Tavern in Tombs of Terror
  • Dire Frenzy should now properly generate golden cards if the target minion is golden
  • Hero powers rewarded from Quest cards should now properly become visually disabled on the turn the Hero power is rewarded if Mindbreaker is in play
  • Elise the Enlightened will now duplicate cards in hand from left to right, instead of randomly
  • Newly discovered Hero powers from Sir Finley of the Sands should now properly become visually disabled if Mindbreaker is in play
  • Fixed several visual and sound issues when a Hero power is replaced (either by Quest completion or Sir Finley of the Sands) after the original Hero power was already used that turn



A Hearthstone player and writer from Poland, Stonekeep has been in a love-hate relationship with Hearthstone since Closed Beta. Over that time, he has achieved many high Legend climbs and infinite Arena runs. He's the current admin of Hearthstone Top Decks.

Check out Stonekeep on Twitter!

Leave a Reply


  1. DukeStarswisher
    September 11, 2019 at 10:17 am

    Yeah thats a pretty huge discover nerf right out of nowhere… Sure it nerfs control warrior but its not exactly the go-to deck after boom’s nerf.

    Am I alone here on being upset? That was one of the best parts of the discover mechanic!

  2. Omnitarian
    September 10, 2019 at 6:46 pm

    Weird! But understandable, the way Control Warrior (and previously, Odd Paladin) could exploit a small discover pool kinda ruins the idea of the mechanic. One tiny “buff” this gives is to Power of Creation in standard – Meteorologist and Arcanosaur were MISERABLE low rolls. Toki and Reno are just eh, and those are all of the 6-cost Mage minions in standard so they showed up all the time.