Hearthstone Monster Hunt Patch Data Mining: Test Cards, Slush Cards, More Arena Exclusives?

There was a patch added to the game today that has likely paved the way for the Monster Hunt that will be released tomorrow and is apart of the new Witchwood expansion. We did a bit of digging into the patch, and we found a bunch of interesting card additions. The previously voted on arena exclusives that didn’t make the cut have been added, something from a set called “slush”, and what appears to be the test cards used by Blizzard to test interactions in the game. We’re not sure how all of this is going to work, but take a look at what we found in the patch below!

In a previous patch, we data mined all of the Bosses from the Monster Hunt: Monster Hunt Guide: Bosses List, Tips and Tricks!

There’s no indication that any of these cards will be officially added to the game! They were in the patch, they might never see any type of play, so please keep that in mind!

Arena Exclusives

You might recognize these cards as the ones that were voted on at BlizzCon to be added exclusively to the Arena. The ones that were voted for were added to the game and the rest weren’t. However, now these ones have been added to the back end of the game, so we might get to see them in the Arena soon!

Slush Card Set

A bunch of cards were added that are listed under the set SLUSH. We aren’t sure what these are for, but some of them appeared to be pretty interesting so we decided to include them. This is only some of the cards, it looks like there was over 300 added. Let us know what you think they might be for in the comments!

Update: A keen eyed observer noticed that one of these cards was mentioned in the Hearthside Chat about the Echo keyword. This might mean that these cards were tested prior to the expansion and were eventually scrapped or changed to some of the cards that actually made the cut.

Test Cards

These cards are very likely used to test interactions with the game by Blizzard. Why they were added to the actual live game itself? We can’t be sure! There’s a ton of these, and some are quite boring so I listed some of the fun ones below.

Leave a Reply


  1. Quthar
    April 26, 2018 at 9:53 am

    Maybe there will be a tavern brawl with the slush cards and test cards?

  2. NaxiusGaming
    April 26, 2018 at 6:04 am

    Anyone has a link/image of all the data mined cards? Would really like to see them. Thanks!

  3. ytho
    April 26, 2018 at 4:47 am

    I think that cards like “Tyr, the Silver Hand”, “Grimoire of Anguish (This card screams forced synergy)” and “Kobold Farmer” are cards that will possibly be in the next expansion. I think that “Spellflare” is a new key word, probably to replace “whenever you cast a spell x happens”.

    P.D: Am I the only one that finds it weird that the text in “Scorpion Pack” is in the wrong order? (It should first describe what the card does and then explain how the cost reduction is applied)

  4. Cynce
    April 25, 2018 at 10:46 pm

    This was never meant to be released and we were never meant to see it. Obviously they wanted to release the monster hunt at the same time as the expansion, but hadn’t finished the testing phase for it. They must have worked lots of overtime to try and get it out after two weeks as they had announced. In their hurry to get it out, they forgot some stuff in there that they usually always take out of the version before releasing. Now that they realize their mistake, they’re frantically trying to figure out how to fix it. Someone might lose their job over this, especially if those Slush cards were meant to be the next expansion, revealing the whole thing way too early and out of context.

    I wish you had contacted Blizzard to inform them of this mistake instead of posting it online, making matters worse for them. I work in the gaming industry as a programmer, so I know how they must feel right now, and let me tell you, it ain’t good.

    • Yenwood
      April 26, 2018 at 3:53 am

      there is a 0% chance someone lost their job over this

      • Cynce
        April 26, 2018 at 8:19 am

        How do you know this? Do you work at Blizzard?

    • Jonathan
      April 26, 2018 at 7:08 am

      Lol chill out.

    • Skiffington - Site Admin
      April 27, 2018 at 10:46 am

      Consensus seems to be that these were cards that were in development, but were scrapped. So yeah, they probably were never meant to see the light of day, but I dont think Blizzard took it too seriously otherwise they would have reached out to us about taking this down.

  5. Kingtristan
    April 25, 2018 at 9:42 pm

    I think some of the slush cards are canceled witchwood cards. That battlecry discover if your oponent guess right mechanics was mentioned in the hearthside chat video, but it was canceled and replaced by echo mechanic. + that genn

  6. JurA
    April 25, 2018 at 5:14 pm

    Please all go standard tonight

  7. Osumatthew
    April 25, 2018 at 4:16 pm

    Is this an “un” set that I see? I wonder how they’ll work something like that in, because obviously these cards can’t (or at least shouldn’t) be available for competitive play.

  8. Penoyer79
    April 25, 2018 at 3:28 pm

    some of those slush cards would be cool in standard. others are obviously broken.

    makes me wish HS would released mini-expansions. A set of like 10-25 cards for like $5-$10 to coincide with the balance patch

    • Gabriel
      April 25, 2018 at 4:39 pm

      Basically what they did with Adventure Mode

      • Penoyer79
        April 26, 2018 at 1:13 am

        to a lesser extent… just enough cards to flip the meta a bit. keep things interesting in the dog days before a new set is released.

  9. Benjaxoul
    April 25, 2018 at 3:21 pm

    Server crash AKA Shudderwock