An encounter at the crossroads... under a manastorm! Choose a class, get random cards. Each turn your cards' costs are randomized!

How It Works

  • Pick a class: your deck will be filled with random neutral and class-specific cards.
  • At the start of each turn, the mana cost of all cards in your hand changes.
    • Minimum random mana cost is 1 and maximum the cards' original cost.


When We've Seen Randomonium

Week Started Ended Reward
Week #18 Tuesday, October 13, 2015 Saturday, October 17, 2015 1x Classic Pack
Week #28 Tuesday, December 22, 2015 Saturday, December 26, 2015 1x Classic Pack
Week #39 Tuesday, March 08, 2016 Saturday, March 12, 2016 1x Classic Pack
Week #59 Tuesday, July 26, 2016 Saturday, July 30, 2016 1x Classic Pack
Week #67 Tuesday, September 20, 2016 Saturday, September 24, 2016 1x Classic Pack
Week #103 Tuesday, May 30, 2017 Saturday, June 03, 2017 1x Classic Pack
Week #156 Tuesday, June 05, 2018 Saturday, June 09, 2018 1x Classic Pack
Week #199 Wednesday, April 03, 2019 Monday, April 08, 2019 1x Rise of Shadows Pack
Week #275 Wednesday, September 16, 2020 Wednesday, September 23, 2020 1x Classic Pack
Week #321 Wednesday, August 04, 2021 Wednesday, August 11, 2021 1x Year of the Phoenix Pack
Week #351 Wednesday, March 02, 2022 Wednesday, March 09, 2022 1x Year of the Phoenix Pack
Week #380 Wednesday, September 21, 2022 Wednesday, September 28, 2022 1x Standard Pack


  • KANSAS's Avatar
    Old God Fanatic 1745 2912 Posts Joined 03/25/2019
    Posted 4 years, 5 months ago

    I really dont like how many brawls we have that are just some variation of "here is some random cards"

    it is getting boring.

    • AngryShuckie's Avatar
      1705 1735 Posts Joined 06/03/2019
      Posted 3 years ago

      I wouldn't be surprised if they actually have more people playing them throughout the week than the ones where you build your own deck, and hence the devs reuse them more often. I'd be interested in seeing  the actual numbers as well as a venn diagram of players who spend time on each broad type of brawl; the overlap is probably quite small.

      In defense of the random brawls: they are by no means perfect, but I for one enjoy them while they are around, and I certainly appreciate that they don't collapse into a more restrictive and cutthroat meta than constructed within the first hour.


      • Nevin's Avatar
        525 393 Posts Joined 06/14/2019
        Posted 3 years ago

        IIRC, the Hearthstone team has said that this is their most popular Brawl mode, whether you measure by number of games played or total amount of time spent.

        This is probably not what any of us would expect, but it’s a good reminder that Hearthstone has a lot of different types of players, some of whom are not represented on our message boards.

      • Motsn's Avatar
        35 1 Posts Joined 09/16/2020
        Posted 3 years ago

        I can only speak for myself but yes, I love the random brawls. They are great for questing and they are fun.

        With the random brawls, where you get a predefined deck, I usually rack up somewhere between 20 to 40 wins (and I usually only do my daily quests). With the brawls where you have to build a deck, I usually only play until I get my free pack.

        For me, the random brawls are quick, replayable, exciting fun. I wouldn't need the deckbuilding ones at all

        • Me0203's Avatar
          Design Champion 750 491 Posts Joined 06/13/2019
          Posted 3 years ago

          I think the deckbuilding ones could be more fun if they loosened them up a bit. Only being able to use three cards, for instance - of course a meta is going to form very quickly for that, because there are less decisions to make. But what if you could only make decks with Horde or Alliance characters (and all of those were available for the Brawl)? That way, not only are there more deckbuilding decisions to make, but you also get the fun of seeing how your lore-good decks would work in a Hearthstone setting. Bringing lore into it can make even terrible losses fun or funny, and providing cards makes it more enticing.


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