The Boomsday Project Guide – Release Date, Card Spoilers List, Pre-Purchase

The Boomsday Project is the second expansion coming out in the Year of the Raven! Our expansion guide will feature card spoiler list, gameboard art, card backs, general artwork, and more! I’ll be updating this guide immediately following the release of any new information.

Be sure to bookmark this page to keep up-to-date! Follow us on TwitterFacebook, and Join our Discord for immediate updates!

General Information

  • Release Date – August 7, 2018.
  • First Card Reveal Stream – July 23, 2018.
  • New Keyword – Magnetic – Minions with “Magnetic” can be played normally, or fused with another Mech. Fusing Mechs will add their stats and effects together, similarly to how Zombeasts work!
  • Legendary Spells!
  • Two Pre-Purchase Options – Regular and MEGA BUNDLE. Regular one contains 50 card packs, a random Golden Legendary, and a Mecha-Jaraxxus Card Back. MEGA BUNDLE contains 30 extra packs and a new Warlock Hero – MECHA-JARAXXUS! This is available NOW!
  • Free Stuff: When the expansion goes live, you will receive a random class Legendary minion and three packs just for logging in!

More Information & Guides

Pre-Purchase Information

The Boomsday Project Pre-Purchase Bundle

Eager applicants can pre-purchase The Boomsday Project card packs from two bundles: a 50-pack bundle that also includes one free golden Legendary and the Mecha-Jaraxxus card back, and the 80-pack Mega Bundle that includes a free golden Legendary, as well as the Mecha-Jaraxxus Warlock Hero, in addition to the Mecha-Jaraxxus card back. These one-time-only bundles are available on any platform for $49.99 and $79.99, respectively (players can purchase each bundle only once per account).

The Boomsday Project Visual Card Guide & Spoilers List

There will be 135 new cards in The Boomsday Project expansion. Below you will find cards sorted by class and a visual look at what is still left to reveal.

Card Database

Most Recently Revealed Cards from The Boomsday Project











The Puzzle Lab

The Boomsday Project is a scientific endeavor of maddening scope, so Dr. Boom is calling in everyone to help . . . including interns! All the wacky science being done at the Boom Labs—not to mention the blatant disregard for ethics and safety— has resulted in quite a mess, and someone’s got to clean it up.

In The Boomsday Project’s single-player mode, The Puzzle Lab, players can earn Dr. Boom’s favor by solving over 100 different mind-boggling puzzles. Players will be have to wrestle with a variety of brain-teasers that’ll put their wits to the test, like Lethal puzzles, which challenge them to make a match-winning play with a specific board state, or Survival puzzles, which task them to stay alive against stacked odds with scant tools at their disposal. Bright researchers who survive the gauntlet will earn a one-on-one with Dr. Boom himself, at his personal workshop.

The Puzzle Lab opens on August 21.

Each one of these experiments requires you to complete each puzzle based on the theme of the experiment. Here’s a list and description of the themes:

  • Lethal (Destroy the enemy hero): In this experiment, the assistant is tasked with neutralizing the opponent in one turn using the cards at their disposal. We expect this will provide valuable insights into the destructive properties of many of our inventions.
  • Mirror (Create a perfectly mirrored battlefield): These tasks challenge the assistant to create a board state where both sides are perfect mirror images of each other: minion positioning, health, attack, etc. This should yield plentiful data on various means of board manipulation.
  • Board Clear (Clear the battlefield of minions): Pretty straightforward: clear the board of all minions. Our research suggests that minions play an important role in winning matches, and this set of challenges will help us better understand how to get rid of them.
  • Survival (Survive the enemy Hero Power): Finally, the Survival trial requires the test subject to restore their own health in order to survive their opponent’s next onslaught. A recent study has shown that dropping to zero health inversely correlates with winning games, and this experiment will further explore that relationship.

Boomsday Reveal Trailer

Boomsday Gameplay Video


Card Backs

Mecha Jaraxxus Card Back

Mecha-Jaraxxus Card Back – Pre-Purchase The Boomsday Project

Puzzle Lab Card Back

Puzzle Lab Card Back – Earned by Completing The Puzzle Lab

Full Card Art

Here’s a bunch of full card art from The Boomsday Project. We’ll be adding more as it’s released, so be sure to check back often. Click an image to enlarge!

Key Art

The key art usually sets the theme of the expansion. It gives the designers a good idea of the feel of the set, so they can model their artwork after it.

Boomsday Project Key Art

Cinematic Stills


  1. Artur - SoulCollector
    July 19, 2018 at 3:28 am

    hmmm Neutral cards – 5 legend 9 epic 9 rare 5 common – class 2L 2E 3R 3C – hmm – I bought 80 pre packs , so i will get 200 same common ? :[ , next upg will have 20 legend 40 epic 40 rare 10 commmon ? ;]

    • Stonekeep
      July 19, 2018 at 6:03 am

      It’s just a template, we don’t know the distribution of rarities yet and there is no point in adding blanks. There will definitely be many more Neutral Commons.

  2. Edward Fowler
    July 17, 2018 at 8:56 am

    If Spider Bomb didn’t have “Magnetic”, would you still play it? I would! Especially in a class that can trigger the death
    rattle effect (Play Dead) and get double use. It’s a spell with a body, a great value play!
    i’m not so sure I’d even play the Magnetic ability anyway. If you do, you have just 1 minion which 1 resource could eliminate. 2 bodies means 2 resources needed (usually). I may want the death rattle effect but keep my other minion alive. Good card, questionable mechanic.

    • Moltar
      July 17, 2018 at 11:42 am

      Volatile Elemental (2 mana, 1/1, deathrattle: deal 3 damage to a random enemy minion) is kinda similar and saw play in constructed, even in non elemental decks.

      So I expect this card will see play too.

      • Stonekeep
        July 19, 2018 at 6:03 am

        Did it? I haven’t seen it in a single Constructed deck, ever.

    • Connor Faucher
      July 17, 2018 at 12:44 pm

      I think the benefits of the magnetic affect are that you can attach this to a mech already in play so that you can activate the deathrattle that turn if you value trade into another high priority target, therefore getting to clear 2 minions that you might not have been able to otherwise

    • Show T
      July 17, 2018 at 4:09 pm

      If the moon was made out of cheese, would you eat it? Heck, I would!

  3. TurtleX
    July 15, 2018 at 7:16 am

    Why don’t players get bonus rewards for completing the puzzle lab and all that stuff. There is no real incentive to do these. I just spent a month to complete the puzzle lab, now I get a card back for my skill and hard work as a player. Maybe give a free golden legendary or something for clearing the puzzle lab.

    • Moltar
      July 15, 2018 at 9:43 am

      How did you complete the puzzle lab if it wasn’t released yet?

      • Ben Martin
        July 17, 2018 at 9:05 pm

        The reason that he had completed it was probably hearthstone gave him the prototype version to try out as they often do to famous you tubers as well as employees for feedback and beta testing

        • Stonekeep
          July 19, 2018 at 6:04 am

          …or he just didn’t complete it.

  4. Cosoma
    July 13, 2018 at 1:09 pm

    Electra far sight is so op. The fact that you can Grumble/ Zola the Electra is gonna make shudderwock so much better -_-

  5. RandyMarsh
    July 13, 2018 at 5:15 am

    Wow 3 packs just for logging in. Such a generous offer. With my 3 packs I shall definitely get most of the new cards of the expansion.

    • Valtina
      July 14, 2018 at 8:52 am

      If they gave away everything for free the game would either have to have a heavy amount of ads on it or it would have to stop it services. It is a business not a charity. It boggles my mind that people can’t think about anything but themselves, open your mind a little.

      • RandyMarsh
        July 14, 2018 at 10:41 am

        So that is the alternative, to give everything for free? I didn’t know those where the only two options blizzard can take. I never said to give everything for free that is just what you said. But they should give more things to players than a mere 3 packs. 10 packs of the new expansion would be a great way to go. The fact that you support blizzard on that choice is mind boggling here when it is common knowledge that hearthstone is the only card game that rewards players so little for actually playing. Go buy the bundles and give them money so that you can buy the next one in 4 months and the next one after that. That is the only reason they give so little not because they need the money to support the game.

        • Disqonnect3ed
          July 14, 2018 at 1:33 pm

          Oh come on, Valtina has a point, plus don’t forget you also get a free class legendary minion (which in my mind is like an equivalent of 10-12 packs). Also also, there was a supercool event earlier, during which blizzard gave out lots of free gold and dust through better missions. if you had beeen smart, you would have saved up a bunch of resources, and be ready to buy at least 15-20 packs when expansion starts.

          • TurtleX
            July 15, 2018 at 7:19 am

            10-12 packs, really? I tend to open 20-30 packs for 1 legendary

        • Moltar
          July 14, 2018 at 3:51 pm

          According to blizzard, whenever a new set comes out, they allow players to get a total of 10 pack for free, some when you log in, others through some custom quests or single player content (which now is also free).
          Also those 10 packs are warranted to net you a legendary (you are warranted to get a legendary in any of the first 10 packs of any set)
          In other words, they reward you with free packs and stuff for actually playing the game.

          It’s a take it or leave it. If you don’t like it you are free to go play those other more rewarding games.

        • Valtina
          July 17, 2018 at 10:28 am

          I am not taking Blizzards side in this, it is merely a logical view of business. You should be happy you get handed anything in the first place, you sound like one of those kids that is asking their parrent for a car in birthday because they friend got one from his parents, when you compare one company with another like that.
          I haven’t bought a single pack of cards for money since vanilla and back then it was only 20 packs and i can play the game just fine with the rewards through events like the time walker we just had and now we got a double up yet again.

          As i said before it is a business not a charity, the fact that you get anything for free and still whine about it is maddening.

          • Ben Martin
            July 17, 2018 at 9:17 pm

            From a business perspective it wld actually be wise for blizzard to give out free packs bc when they don’t it makes ptp players like me more inclined not to play bc it makes them feel like they are being forced to play money. … and although I can be decent at the game wo paying u can never be amazing unless u pay and when blizzard tries to scam u into buying cuz they won’t give u free packs it angers their ptp player base which is illogically business wise not only do to their loss of ptpp’s but to all of the new comers that they could recruit and recommend the game to

    • Exploder909
      July 14, 2018 at 10:08 am

      It’s always been that way. Are you new?

    • Jason
      July 15, 2018 at 12:40 am

      Even if they gave us 10 packs for logging in, a FTP player can never have all the cards from an expansion. so why not give us 10 packs?

    • jason
      July 15, 2018 at 12:43 am

      Even if they gave out 10 free packs, a FTP player will never have nearly all the cards from an expansion.

    • Dynasty
      July 15, 2018 at 12:46 am

      Even if they gave out 10 packs, a FTP player wouldn’t be able to have even have half of the cards from a new expansion. So why not just give out 10 packs?

  6. loink
    July 11, 2018 at 10:11 pm

    Can anyone tell me which cart-set that will outdate?

    // loink

    • Stonekeep
      July 12, 2018 at 1:58 am

      None. Rotations happen yearly, not when a new expansion is released. Next rotation will happen with the first set of 2019 (and it will push out all of the 2017 sets – Un’Goro, KFT and Kobolds).

      • loink
        July 12, 2018 at 11:22 am

        Lovely – thanks

  7. Chris
    July 11, 2018 at 8:53 pm

    All I see is that 19,300 Gold!

    • laughiing
      July 14, 2018 at 9:48 am

      ill have about 20k gold on release day plus the 130 packs and ill but 80 more…..suffice to say ill have the set and make the best cards gold immediately

  8. Moltar
    July 11, 2018 at 6:11 am

    This new “magnetic” mechanic is the Hearthstone version of “enchantment creatures” from MtG.

    The new bundle is ready to purchase.

    • Bentern
      July 17, 2018 at 3:44 am

      Exactly my thoughts…

  9. CD001
    July 11, 2018 at 4:25 am

    … just when I was getting used to being the only person on the Wild Ladder using an old skool Mech Mage deck 😐

    • Stonekeep
      July 12, 2018 at 2:01 am

      On the bright side, you will most likely have a lot of new tools to improve that deck 🙂

  10. Tom
    July 10, 2018 at 7:37 pm

    You are missing a Legendary slot in Neutral.

    • Stonekeep
      July 12, 2018 at 2:03 am

      Yes, as well as a few Epic, Rare and Common slots, we’re aware of that! We will add them as more cards are released. Especially since the ratio of Neutral Legends/Epics/Rares/Commons vary from expansion to expansion. No reason to bloat the page with blank card images yet.

  11. JadeBuddha
    July 10, 2018 at 4:19 pm

    Remember everyone: the secrets to providing good analyses of the new cards are to speculate wildly based on minimal information, to focus on how a card will work only in a vacuum or in idealized outlier cases, and to make grand pronouncements littered with words like “Amazing!” or “Garbage!”

    • RDUNeil
      July 11, 2018 at 5:59 am

      HUUUUUUUGE Truth! You should be a presidential advisor! This approach works even more spectacularly when discussing foreign policy and negotiating with despots! Amazing!

    • Moltar
      July 11, 2018 at 6:08 am

      Remember when Lady in White was going to be OP?

      Pepperidge Farm remembers.

      • Stonekeep
        July 11, 2018 at 9:20 am

        I, for one, still think that Lady in White has a lot of potential. It’s just not a card you build your deck around – it’s a card that you throw into an existing good deck which runs lots of low attack/high health minions. We had many cards like that before. Some of them end up finding the right deck, others don’t 🙂

  12. RDUNeil
    July 10, 2018 at 1:02 pm

    So, if I read that right… you can buy BOTH packages? 50 dollars and 80 dollars… but only once each. Or is it a choice of either one?

    So they really figured out how to milk this… make it possible to buy a LOT of cheaper packs in pre-release, but not giving you 80 for 50 dollars (like last release) but the chance for 130 for 130 packs (plus the pointless card back and hero stuff).

    Interesting. What a way to milk the early enthusiasm. Smart for them.

    • Kamil
      July 10, 2018 at 1:29 pm

      You can buy both

    • couden
      July 10, 2018 at 2:42 pm

      To be honest, it works. I’ve never bought any pre-purchase.
      But i’m very inclined to buy the 80 bucks one for the sole purpose of getting Jaraxxus.

    • Bodicus
      July 10, 2018 at 6:54 pm

      C’mon man. I can’t buy the packs either, but let’s look at the donut and not the hole. We play for free. Yes, we’re gonna lose a lot. Heck, I’ve had my butt kicked so much it’s now up to my shoulders. I have to take down my pants to brush my teeth! But that’s the way of things. If you can’t afford a Lexus, you don’t get one. But old army jeeps really are the bomb, aren’t they? Uh-OH…did somebody say BOMB?11

    • laughing
      July 10, 2018 at 8:59 pm

      yeah , ill take 130 packs 2 golden legendaries and the rets of the stuff for $130 plus im getting 200 free packs from dust. I ll have the entire collection on day one and im done buying anything. That’s 130 bucks for the complete set…less than a buck a card. Save your gold. I hope they continue this. less than 400 a year for every card. divided by 12 thats about 32 bucks a months… about a dollar a day to have every card. thanks blizzard. To the people who cant save or grind gold you pay 2 bucks a day. If you dont want to pay for cards then you have nothing to complain about.

      • RDUNeil
        July 11, 2018 at 6:06 am

        Yeah… this is my approach, but then I come from playing Magic for two decades or more, and you had to drop 500 bucks or so on each set (buy a case) just to even remotely get the cards you wanted… then money for drafts, tournaments, etc. Hearthstone is remarkably cheap by comparison. I played the first year I dumped Magic to play HS as a free game, and while it was possible, the minimal investment to have most of the cards you need is worth it if you enjoy the game.

        • Exploder909
          July 14, 2018 at 12:22 pm


    • Stonekeep
      July 11, 2018 at 2:58 am

      It was 70 for $50 last time, not 80 if I remember correctly.

      And now they’re giving an extra Golden Legendary. Which is basically a free Legendary of your choice (1.6k Dust) if you don’t care about the shiny cards.

      The Witchwood deal was still better, but not by a huge margin much. The difference between let’s say 110 Packs + Golden Legendary and 130 Packs (I’m assuming F2P player will hoard enough gold to get at least 60 packs, I already have enough for 70 for example) is not that big, really. On average, one is worth 2k Dust (100 Dust/pack) and the other is 1.6k Dust. However, the 1.6k Dust is guaranteed, while the 20 packs can be really bad (like imagine you don’t open any Legendaries and only 2-3 bad Epics and a bunch of Commons and Rares you already have).

      But yes, the fact that you can buy both is them trying to milk some players. Which I don’t really mind. It’s a better deal than regular packs anyway, so if people want to buy it, why not.

      • laughing
        July 11, 2018 at 6:48 pm

        Stone everyone that has access to amazon coins already gets their packs for a dollar or less. I always check coin prices and i buy 10000 for 77-78 bucks when they pop up. My packs are always a dollar or less. Now the 130 packs I just bought i got for even less than a buck and I get two golden legendaries. I have played so long and have every card in the game I’m just in it too deep at this point. This is the only game I play so its not a big deal to me. 50 bucks for 40 packs is nuts, i would never pay that. You have to be smart and take advantage of Amazon. I wouldn’t have the amount of golden cards I have if it were not for the coin deals and coins back options they used to run. at one point I was getting packs for .55 cents. with the preorder and my gold ill have 330 packs on release day give or take a few. That will get me the entire set. Usually I would buy the preorder get around 160 packs from gold and buy another 200 packs of the 40 paack bundles. Blizzard is actually going to get less money out of me this time and I hope they keep doing this. I know people are mad but they have to understand blizzard made this game for one reason….TO MAKE MONEY. selling a toon for 9.99 isn’t the strategy this time around. People who buy cards won’t care one way or another. Blizzard is very smart and they are trying to get those F2P on the fence to throw some money into the pot for some swag. The more people that contribute the better.

        • Stonekeep
          July 13, 2018 at 12:46 am

          I’m using Amazon Coins too! I’m not buying anything other than pre-orders, because I don’t need more packs. With pre-order + packs from gold I usually end up with ~130, which is enough for me – this time I’ll get the 80 packs bundle + over 80 from the gold, so over 160 packs. It won’t give me a full set, but I’ll just craft the useful Epics & Legends. I’m doing this for the last few expansions and I can play every deck I want.

          But yes, Amazon Coins are a great deal. If you can get them from 20-25% off, then you’re paying much less for the packs. I wonder why more people aren’t doing it.

          And yes, it’s obvious that they made this game to earn money. Every company works like that, they don’t do anything for free. If players are willing to spend money, then it’s a good business. I don’t really mind the prices. I buy one pre-order per expansion and it’s enough for me to play whatever I want. Spending $50 (well, now $80) every 4 months is not a lot for how much I play this game. The only thing I would improve is new players experience. It’s great when you’re already playing the game for long and you can afford anything, but when you just start, you have to grind for months and months to build some meta decks or spend hundreds of dollars at once. Which is a bit steep for someone who just started playing.

    • Chris
      July 11, 2018 at 8:56 pm

      You get TWO golden legendaries if you buy both!

  13. Wikator
    July 10, 2018 at 12:18 pm

    When more cards will be revealed?

    • Evident - Site Admin
      July 10, 2018 at 12:47 pm

      The card reveal stream will be on July 23rd.

      • Wikator
        July 10, 2018 at 12:54 pm

        OK thanks

        • Stonekeep
          July 11, 2018 at 3:00 am

          To add onto that, it’s quite likely that we will see some cards revealed earlier too. In The Witchwood, they have shown some cards in videos about the new mechanics, which were released before the reveal season!

  14. Alex
    July 10, 2018 at 11:51 am



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