Discover

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Discover
Choose one of three cards to add to your hand.
Discover screenshot.jpg

Discover is an ability that allows the player to choose one of three different cards. The three cards are randomly selected from a pool of all eligible cards, as stated by the card text. If not stated, the pool of cards consists of all eligible neutral and class cards matching the player's current hero class, with neutral and class cards weighted equally in being selected. By default, the chosen card is then generated and added to the player's hand, unless otherwise specified in the card text.

All Discover effects feature card selections restricted to specific criteria. Some examples are listed below:

Some Discover effects do not generate cards to the hand and instead have other effects as specified in the card text. Some examples are listed below:

The Discover effect involves both elements of RNG and strategy, with players having to strategize and predict what they can get out of their Discover effect to impact the board and win the game.

Notes[edit | edit source]

  • The Discover effect allows the player to choose a card from a selection of three cards. The cards offered are either neutral or from the class of the player's current hero. If there are additional requirements for the selection of the three cards specified in the card text, those conditions are met as well.
  • The Discover effect by default adds the selected card to the player's hand. However, some cards have an explicit description in the card text of what will be done with the selected card instead.
  • Discover effects will not present duplicate options: each of the three possible choices will be different.[1]
    • If there aren't enough possible options, such as using Shadow Visions when the deck only has two of the same spell, this still applies and only one copy is shown.
  • Players cannot choose not to take one of the cards offered by a Discover effect. They must choose one of the options.[2][3] If the turn timer expires before one of the Discover options is picked, a random option will be chosen.
  • While the activation of Discover effects can be duplicated by Brann Bronzebeard, individual Discover events cannot. If a Discover effect is duplicated, the two will be separate events, with their own selections of cards.[4] However, there is no special rule preventing the two Discovers from featuring some of the same options simply by chance.[5]
  • The card chosen by the Discover effect is not placed in your hand until the end of the current Sequence, meaning that it is possible for your hand to become full in the meantime, discarding the card you chose. For example, if you have a 10/10 card hand, play Raven Idol and have a Wild Pyromancer and Acolyte of Pain in play, the card chosen will float in the air, Acolyte of Pain triggering off of Wild Pyromancer's damage will fill your hand, and finally the card chosen will be discarded. [6]
  • If you play a Discover Battlecry minion, the first Discover effect will not put its card in your hand until the end of the current Sequence (e.g. after death processing following the After Summon Phase resolves). Then, if you control Brann Bronzebeard, you will get a second Discover effect. Note that the played minion does not have to be alive at this time, only Brann Bronzebeard does. Also, note that normally Brann Bronzebeard has to be in your control during the Battlecry Phase.[7]
  • If a secret is discovered as a class without secrets in the format, then a random secret from the class of the card itself is discovered. Otherwise, a secret from the player's current class is discovered.[8]
  • Using Discover effects as Lord Jaraxxus or any Hero card offers cards as though you were playing as the class that card originated from.
  • However, using Discover effects as the Ragnaros hero has a different behaviour depending on the card.[9]
    • If the card with the Discover effect is a neutral card, the game randomly picks 1 of the 10 classes and offers you cards as though you played the Discover card as that class.
    • If the card with the Discover effect is a class card, the game offers you cards as though you played the Discover card as that class.
  • Cards that Discover a card in your deck, like Master's Call or Cleric of Scales, will draw the card. If the card says "Discover a copy of a card in your deck", such as Stitched Tracker, will create an extra copy.
  • Cards are only considered Discover effects when they say Discover on their card text. Discover-like effects such as Build-A-Beast, Guidance, and Zephrys the Great will not benefit from Discover synergies.
  • Cards that Discover random cards cannot Discover a copy of itself.

Cards[edit | edit source]

Collectible[edit | edit source]

This section lists all collectible cards that have the Discover mechanic.

For Wild format listings, see Discover/Wild format


Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Athletic Studies Common Spell Warrior 1 Discover a Rush minion. Your next one costs (1) less.
Carrion Studies Common Spell Hunter 1 Discover a Deathrattle minion. Your next one costs (1) less.
Demonic Studies Common Spell Warlock 1 Discover a Demon. Your next one costs (1) less.
Draconic Studies Common Spell Priest 1 Discover a Dragon. Your next one costs (1) less.
Font of Power Rare Spell Arcane Mage 1 Discover a Mage minion. If your deck has no minions, keep all 3.
Illidari Studies Common Spell Demon Hunter 1 Discover an Outcast card. Your next one costs (1) less.
Mystery Winner Common Minion General Hunter 1 1 1 Battlecry: Discover a Secret.
Nature Studies Common Spell Nature Druid 1 Discover a spell. Your next one costs (1) less.
Primordial Studies Common Spell Arcane 1 Discover a Spell Damage minion. Your next one costs (1) less.
Renew Common Spell Holy Priest 1 Restore 3 Health. Discover a spell.
Resizing Pouch Common Spell 1 Discover a card with Cost equal to your remaining Mana Crystals.
Wand Thief Common Minion General 1 1 2 Combo: Discover a Mage spell.
Yoink! Epic Spell Rogue 1 Discover a Hero Power and set its Cost to (0). Swap back after 2 uses.
Apexis Smuggler Epic Minion General Mage 2 2 3 After you play a Secret, Discover a spell.
Netherwalker Common Minion General Demon Hunter 2 2 2 Battlecry: Discover a Demon.
Runed Orb Common Spell Arcane Mage 2 Deal 2 damage. Discover a spell.
Shadowjeweler Hanar Legendary Minion General Rogue 2 1 4 After you play a Secret, Discover a Secret from a different class.
Snack Run Rare Spell Paladin 2 Discover a spell. Restore Health to your hero equal to its Cost.
Instructor Fireheart Legendary Minion General Shaman 3 3 3 Battlecry: Discover a spell that costs (1) or more. If you play it this turn, repeat this effect.
Marshspawn Common Minion Elemental Shaman 3 3 4 Battlecry: If you cast a spell last turn, Discover a spell.
Pack Kodo Common Minion Beast Hunter 3 3 3 Battlecry: Discover a Beast, Secret, or weapon.
Palm Reading Rare Spell Priest 3 Discover a spell. Reduce the Cost of spells in your hand by (1).
Venomous Scorpid Common Minion Beast Any 3 1 3 Poisonous
Battlecry: Discover a spell.
Ring Toss Rare Spell Mage 4 Discover a Secret and cast it. Corrupt: Discover 2 instead.
Rinling's Rifle Legendary Weapon Hunter 4 2 2 After your hero attacks, Discover a Secret and cast it.
Warsong Wrangler Epic Minion General Hunter 4 3 4 Battlecry: Discover a Beast in your deck. Give all copies of it +2/+1 (wherever they are).
Keywarden Ivory Legendary Minion General 5 4 5 Battlecry: Discover a dual-class spell from any class. Spellburst: Get another copy.
Steward of Scrolls Common Minion Elemental Any 5 4 4 Spell Damage +1
Battlecry: Discover a spell.
Grand Empress Shek'zara Legendary Minion General Rogue 6 5 7 Battlecry: Discover a card in your deck and draw all copies of it.
Showing all 29 cards
Athletic Studies(329995).png
Carrion Studies(329968).png
Demonic Studies(329975).png
Draconic Studies(329980).png
Font of Power(210792).png
Illidari Studies(442062).png
Mystery Winner(388994).png
Nature Studies(329870).png
Primordial Studies(329947).png
Renew(210817).png
Resizing Pouch(442059).png
Wand Thief(329872).png
Yoink!(487650).png
Apexis Smuggler(210744).png
Netherwalker(210826).png
Runed Orb(464149).png
Shadowjeweler Hanar(210715).png
Snack Run(389044).png
Instructor Fireheart(329934).png
Marshspawn(210828).png
Pack Kodo(464051).png
Palm Reading(388982).png
Venomous Scorpid(464074).png
Ring Toss(378831).png
Rinling's Rifle(388953).png
Warsong Wrangler(464055).png
Keywarden Ivory(442036).png
Steward of Scrolls(329957).png
Grand Empress Shek'zara(388945).png


Forged in the Barrens

The below cards are planned for release with Forged in the Barrens, coming March 30th, 2021.

Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Tracking Rare Spell General Hunter 1 Discover a card from your deck.
Selective Breeder Rare Minion General Hunter 2 1 1 Battlecry: Discover a copy of a Beast in your deck.
Thrive in the Shadows Rare Spell Shadow Priest 2 Discover a spell from your deck.
Southsea Scoundrel Epic Minion Pirate Any 4 5 5 Battlecry: Discover a card in your opponent's deck. They draw theirs as well.
Ethereal Conjurer Common Minion General Mage 5 6 4 Battlecry: Discover a spell.
Showing all 5 cards
Tracking(475107).png
Selective Breeder(475093).png
Thrive in the Shadows(475132).png
Southsea Scoundrel(464109).png
Ethereal Conjurer(475119).png


Wild format

Wild icon.pngThis section concerns content exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Arcane Breath Rare Spell Arcane Mage 1 Deal 2 damage to a minion. If you're holding a Dragon, Discover a spell.
Blazing Invocation Rare Spell Fire Shaman 1 Discover a Battlecry minion.
Boom Squad Common Spell Warrior 1 Discover a Lackey, Mech, or Dragon.
Cleric of Scales Rare Minion General Priest 1 1 1 Battlecry: If you're holding a Dragon, Discover a spell from your deck.
Cloning Device Common Spell Priest 1 Discover a copy of a minion in your opponent's deck.
Dark Possession Rare Spell Warlock 1 Deal 2 damage to a friendly character. Discover a Demon.
Dragon's Hoard Rare Spell Rogue 1 Discover a Legendary minion from another class.
Finders Keepers Epic Spell Shaman 1 Discover a card with Overload. Overload: (1)
Hallucination Common Spell Nature Rogue 1 Discover a card from your opponent's class.
I Know a Guy Common Spell Warrior 1 Discover a Taunt minion.
Journey Below Rare Spell Rogue 1 Discover a Deathrattle card.
Magic Trick Rare Spell Arcane Mage 1 Discover a spell that costs (3) or less.
Omega Assembly Rare Spell Warrior 1 Discover a Mech. If you have 10 Mana Crystals, keep all 3 cards.
Raven Idol Common Spell Druid 1 Choose One - Discover a minion; or Discover a spell.
Secret Plan Common Spell Hunter 1 Discover a Secret.
Sinister Deal Common Spell Warlock 1 Discover a Lackey.
Sir Finley Mrrgglton Legendary Minion Murloc Any 1 1 3 Battlecry: Discover a new basic Hero Power.
Worthy Expedition Common Spell Druid 1 Discover a Choose One card.
A Light in the Darkness Common Spell Holy Paladin 2 Discover a minion. Give it +1/+1.
Crystalsong Portal Epic Spell Nature Druid 2 Discover a Druid minion. If you hand has no minions, keep all 3.
Dark Peddler Common Minion General Warlock 2 2 2 Battlecry: Discover a 1-Cost card.
Dendrologist Rare Minion General Druid 2 2 3 Battlecry: If you control a Treant, Discover a spell.
Firetree Witchdoctor Rare Minion General Any 2 2 2 Battlecry: If you're holding a Dragon, Discover a spell.
Frightened Flunky Common Minion General Warrior 2 2 2 Taunt
Battlecry: Discover a Taunt minion.
Grimestreet Informant Rare Minion General 2 1 1 Battlecry: Discover a Hunter, Paladin or Warrior card.
Hydrologist Common Minion Murloc Paladin 2 2 2 Battlecry: Discover a Secret.
Jeweled Scarab Common Minion Beast Any 2 1 1 Battlecry: Discover a (3)-Cost card.
Museum Curator Common Minion General Priest 2 1 2 Battlecry: Discover a Deathrattle card.
Netherspite Historian Common Minion General Any 2 1 3 Battlecry: If you're holding a Dragon, Discover a Dragon.
Primordial Glyph Epic Spell Arcane Mage 2 Discover a spell.
Reduce its Cost by (2).
Shadow Visions Epic Spell Priest 2 Discover a copy of a spell in your deck.
Sir Finley of the Sands Legendary Minion Murloc Paladin 2 2 3 Battlecry: If your deck has no duplicates, Discover an upgraded Hero Power.
Stolen Steel Common Spell Rogue 2 Discover a weapon (from another class).
Twisted Knowledge Common Spell Warlock 2 Discover 2 Warlock cards.
Waxmancy Common Spell Rogue 2 Discover a Battlecry minion. Reduce its Cost by (2).
Bloodscalp Strategist Rare Minion General Hunter 3 2 4 Battlecry: If you have a weapon equipped, Discover a spell.
Bronze Explorer Common Minion Dragon Paladin 3 2 3 Lifesteal
Battlecry: Discover a Dragon.
Chittering Tunneler Epic Minion Beast Warlock 3 3 3 Battlecry: Discover a spell.
Deal damage to your hero equal to its Cost.
Dark Prophecy Rare Spell Priest 3 Discover a 2-Cost minion. Summon it and give it +3 Health.
Golden Scarab Common Minion Beast Any 3 2 2 Battlecry: Discover a 4-Cost card.
Haunting Visions Epic Spell Shaman 3 The next spell you cast this turn costs 3 less. Discover a spell.
Kabal Courier Rare Minion General 3 2 2 Battlecry: Discover a Mage, Priest or Warlock card.
Madame Lazul Legendary Minion General Priest 3 3 2 Battlecry: Discover a copy of a card in your oppponent's hand.
Master's Call Epic Spell Hunter 3 Discover a minion from your deck. Draw all three cards if they are three Beasts.
Messenger Raven Common Minion Beast Mage 3 3 2 Battlecry: Discover a Mage minion.
Nine Lives Epic Spell Hunter 3 Discover a friendly Deathrattle minion that died this game. Also trigger its Deathrattle.
Primalfin Lookout Common Minion Murloc Any 3 3 2 Battlecry: If you control another Murloc, Discover a Murloc.
Primordial Explorer Common Minion Dragon Hunter 3 2 3 Poisonous
Battlecry: Discover a Dragon.
Stitched Tracker Common Minion General Hunter 3 2 2 Battlecry: Discover a copy of a minion in your deck.
Stonehill Defender Rare Minion General Any 3 1 4 Taunt
Battlecry: Discover a Taunt minion.
Vulpera Scoundrel Epic Minion General Any 3 2 3 Battlecry: Discover a spell or pick a mystery choice.
Arcane Keysmith Epic Minion General Mage 4 2 2 Battlecry: Discover a Secret. Put it into the battlefield.
Azure Explorer Common Minion Dragon Mage 4 2 3 Spell Damage +2
Battlecry: Discover a Dragon.
Body Wrapper Epic Minion General Any 4 4 4 Battlecry: Discover a friendly minion that died this game. Shuffle it into your deck.
Eternal Servitude Rare Spell Priest 4 Discover a friendly minion that died this game. Summon it.
Gorillabot A-3 Common Minion Mech Any 4 3 4 Battlecry: If you control another Mech, Discover a Mech.
Griftah Legendary Minion General Any 4 4 5 Battlecry: Discover two cards. Give one to your opponent at random.
Hench-Clan Burglar Common Minion Pirate Rogue 4 4 3 Battlecry: Discover a spell from another class.
Marked Shot Common Spell Hunter 4 Deal 4 damage to a minion.
Discover a spell.
Tomb Spider Common Minion Beast Any 4 3 3 Battlecry: Discover a Beast.
Chromatic Egg Epic Minion General Any 5 0 3 Battlecry: Secretly Discover a Dragon to hatch into. Deathrattle: Hatch!
Drakonid Operative Rare Minion Dragon Priest 5 5 6 Battlecry: If you're holding a Dragon, Discover a copy of a card in your opponent's deck.
Ethereal Conjurer Common Minion General Mage 5 6 3 Battlecry: Discover a spell.
Lotus Agents Rare Minion General 5 5 3 Battlecry: Discover a Druid, Rogue or Shaman card.
Malygos, Aspect of Magic Legendary Minion Dragon Mage 5 2 8 Battlecry: If you're holding a Dragon, Discover an upgraded Mage spell.
Myra Rotspring Legendary Minion General Rogue 5 4 2 Battlecry: Discover a Deathrattle minion. Also gain its Deathrattle.
Servant of Kalimos Rare Minion Elemental Any 5 4 5 Battlecry: If you played an Elemental last turn, Discover an Elemental.
Arcane Dynamo Rare Minion General Any 6 3 4 Battlecry: Discover a spell that costs (5) more.
Emerald Explorer Common Minion Dragon Druid 6 4 8 Taunt
Battlecry: Discover a Dragon.
Ivory Knight Rare Minion General Paladin 6 4 4 Battlecry: Discover a spell. Restore Health to your hero equal to its Cost.
A New Challenger... Epic Spell Paladin 7 Discover a 6-Cost minion. Summon it with Taunt and Divine Shield.
Gurubashi Hypemon Epic Minion General Rogue 7 5 7 Battlecry: Discover a 1/1 copy of a Battlecry minion. It costs (1).
Archivist Elysiana Legendary Minion General Any 8 7 7 Battlecry: Discover 5 cards. Replace your deck with 2 copies of each.
Free From Amber Rare Spell Priest 8 Discover a minion that costs (8) or more. Summon it.
Power of Creation Epic Spell Arcane Mage 8 Discover a 6-Cost minion. Summon two copies of it.
The Runespear Legendary Weapon Shaman 8 3 3 After your hero attacks, Discover a spell and cast it with random targets.
Tortollan Pilgrim Epic Minion General Mage 8 5 5 Battlecry: Discover a spell in your deck and cast it with random targets.
Tortollan Primalist Epic Minion General Any 8 5 4 Battlecry: Discover a spell and cast it with random targets.
Arch-Thief Rafaam Legendary Minion General Any 9 7 8 Battlecry: Discover a powerful Artifact.
Kalecgos Legendary Minion Dragon Mage 10 4 12 Your first spell each turn costs (0).
Battlecry: Discover a spell.
Showing all 80 cards
Arcane Breath(151359).png
Blazing Invocation(89446).png
Boom Squad(184971).png
Cleric of Scales(184962).png
Cloning Device(89837).png
Dark Possession(89473).png
Dragon's Hoard(127303).png
Finders Keepers(49749).png
Hallucination(55592).png
I Know a Guy(49623).png
Journey Below(35194).png
Magic Trick(90579).png
Omega Assembly(89845).png
Raven Idol(27230).png
Secret Plan(89914).png
Sinister Deal(90804).png
Sir Finley Mrrgglton(27215).png
Worthy Expedition(90829).png
A Light in the Darkness(35237).png
Crystalsong Portal(90586).png
Dark Peddler(27243).png
Dendrologist(89816).png
Firetree Witchdoctor(90194).png
Frightened Flunky(90758).png
Grimestreet Informant(49627).png
Hydrologist(55479).png
Jeweled Scarab(27211).png
Museum Curator(27250).png
Netherspite Historian(42039).png
Primordial Glyph(55552).png
Shadow Visions(55463).png
Sir Finley of the Sands(90722).png
Stolen Steel(90294).png
Twisted Knowledge(184973).png
Waxmancy(184967).png
Bloodscalp Strategist(90231).png
Bronze Explorer(151370).png
Chittering Tunneler(55571).png
Dark Prophecy(184963).png
Golden Scarab(90811).png
Haunting Visions(90208).png
Kabal Courier(49621).png
Madame Lazul(90560).png
Master's Call(90222).png
Messenger Raven(90576).png
Nine Lives(90583).png
Primalfin Lookout(55471).png
Primordial Explorer(127295).png
Stitched Tracker(62854).png
Stonehill Defender(55529).png
Vulpera Scoundrel(90847).png
Arcane Keysmith(89426).png
Azure Explorer(127296).png
Body Wrapper(90843).png
Eternal Servitude(61835).png
Gorillabot A-3(27237).png
Griftah(90213).png
Hench-Clan Burglar(90578).png
Marked Shot(90613).png
Tomb Spider(27226).png
Chromatic Egg(151345).png
Drakonid Operative(49638).png
Ethereal Conjurer(27249).png
Lotus Agents(49629).png
Malygos, Aspect of Magic(127294).png
Myra Rotspring(89865).png
Servant of Kalimos(55511).png
Arcane Dynamo(89882).png
Emerald Explorer(127272).png
Ivory Knight(42019).png
A New Challenger...(90173).png
Gurubashi Hypemon(90195).png
Archivist Elysiana(90621).png
Free From Amber(55542).png
Power of Creation(90570).png
The Runespear(76869).png
Tortollan Pilgrim(90747).png
Tortollan Primalist(55515).png
Arch-Thief Rafaam(27254).png
Kalecgos(90544).png

Uncollectible[edit | edit source]

This section lists all uncollectible cards that have the Discover mechanic.

For Wild format listings, see Discover/Wild format


Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Ring Toss Rare Spell Mage 4 Corrupted
Discover 2 Secrets and cast them.
Showing the only card
Ring Toss(378832).png


Wild format

Wild icon.pngThis section concerns content exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Choose Your Path None Spell Warrior 1 Discover a card.
Draconic Lackey None Minion General Any 1 1 1 Battlecry: Discover a Dragon.
Ethereal Lackey None Minion General Any 1 1 1 Battlecry: Discover a spell.
Delivery Drone None Hero Power Warrior 2 Hero Power
Discover a Mech.
Swaps each turn.
Transfer Student Epic Minion General Any 2 2 2 Battlecry: Discover a new basic Hero Power.
Transfer Student Epic Minion General Any 2 2 2 Battlecry: Discover a Dragon.
Zarog's Crown None Spell Any 3 Discover a Legendary minion. Summon two copies of it.
Showing all 7 cards
Choose Your Path(55598).png
Draconic Lackey(127270).png
Ethereal Lackey(91031).png
Delivery Drone(89831).png
Transfer Student(211518).png
Transfer Student(211531).png
Zarog's Crown(73349).png

Related cards[edit | edit source]

This section lists all cards that have Discover-related mechanics.

For Wild format listings, see Discover/Wild format


Wild format

Wild icon.pngThis section concerns content exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Dwarven Archaeologist Epic Minion General Any 2 2 3 After you Discover a card, reduce its cost by (1).
Showing the only card
Dwarven Archaeologist(90828).png

Development[edit | edit source]

  • Discover is intended to provide a balance between random generate effects like Unstable Portal and regular card draw.[10] While the latter can make games more predictable through accelerating the player's progress through their deck, and the former can prove too unpredictable due to the extremely large and non-class limited pool of potential cards, Discover effects are intended to add variety to games without excessively disturbing class balance, and while still allowing players some control over which card they gain.[10]
  • The Discover ability was originally called "Treasure", a name which is still found in the game's strings.[10][11] The original idea was pitched by Mike Donais, before design work had started on The Grand Tournament, but the developers did not start experimenting with adding it to cards until they began work on The League of Explorers.[10]
  • The developers tried different places for the Discovered card to go, including the top of the deck, and shuffling it into the deck at random. The former proved problematic because of shuffle into deck effects, which not only adds cards to the player's deck but also shuffle the entire undrawn deck; as a result, activating such an effect after a Discover effect would cause the chosen card to become lost in the player's deck, losing much of the value and making the mechanic less reliable. Conversely, if this didn't happen, the card drawn at the start of the next turn would already be known by the player. This removed the surprise at the drawing of an unknown card, and in tough situations often led to a feeling of powerlessness, since the player would know in advance that they were not going to draw next turn a card that was capable of dealing with the state of the board; or otherwise know in advance that they would draw the card they needed, thus taking "the drama and excitement" out of the game. The idea of shuffling the chosen card into the deck was likewise discarded due to the likelihood of the match ending before the card was drawn, thus making the effect feel unimportant and unreliable.[10] In addition, adding the card to the top of the player's deck was an a further innovation on top of the Discover effect itself, and the designers felt it wiser "not try to do too many things all at once in a new mechanic".[10]
  • In terms of card balance, through playtesting the designers found that Discover was in most cases fairly similar in value to a card draw effect. This allowed them to use the established weighting of card draw effects to guide them in choosing stats for Discover minions.[10]
  • One of the last decisions made during the development of Discover was to restrict the effect to neutral and class cards.[10] Prior to this, Discover effects were able to generate any card. With a far larger card pool to choose from, this made it much harder for players to predict which card an opponent's Discover effect had provided, and making the effect almost impossible to play around.[10] The game-wide card pool also produced too much "class bleed", with other classes gaining access to the cards of other classes on too frequent a basis, weakening class uniqueness.[10]
  • The final tweak to the ability was to increase the likelihood of class cards appearing, eventually set to four times the normal chance.[10] This was made in order to balance the far larger number of neutral cards, ensuring that class cards would be well-represented. A similar solution had already been put in place for Arena.[10] Note that after Patch 15.2.0.33717, cards that Discover from a random pool no longer apply this class bonus.
  • After exploring the ability with The League of Explorers, the developers began experimenting with ways to feature Discover in a Tavern Brawl, partly because they were also working on the first round of Tavern Brawls at that time.[10]
  • It was eventually decided for the Discover mechanic to debut through the Captain Blackheart's Treasure Tavern Brawl in October 2015.[12] However, technical problems prevented this, and the keyword was instead announced in November at BlizzCon 2015 with its accompanying adventure, The League of Explorers.
  • Discover was developed "kind of" independently of The League of Explorers. Ben Brode states, "We just kind of smashed them together and it turned out that they felt very natural together."[10] The name change from "Treasure" to "Discover" was influenced by the keyword's debut with the adventure, though.[10]

Trivia[edit | edit source]

  • When the Discover mechanic was introduced, all cards with this mechanic would add the chosen card to the player's hand. This is still reflected in the tooltip that is shown when hovering the mouse over a card with this ability, even though this is no longer true in all cases.
  • Before the introduction of Lifesteal in Knights of the Frozen Throne and subsequent expansions, Discover was the only non-launch keyword to continue to appear on cards outside of the set it was introduced in.
  • Before Patch 15.2.0.33717, class cards had four times the weighting of neutral cards, meaning that they were presented as options four times more often than they otherwise would be.[13][14][15] But because of the far larger pool of neutral cards than those of any given class, in many cases neutral cards were still more commonly presented than class cards.
    • For example, during the time of The League of Explorers adventure, the probabilities when playing Jeweled Scarab as a warlock were reported as a 10% chance for a class minion, 20% chance for a class spell and 70% chance for a neutral minion.[16] This roughly matched the number of each type of card available: 3 warlock minions, 4 warlock spells, and 62 neutral minions (taking into account the 4x modifier for class cards). However, the probabilities for a mage playing Jeweled Scarab were reported as closer to 50/50 between class and neutral cards.[17] Again, this matched the number of cards available: 16 mage cards and 62 neutral cards.

Gallery[edit | edit source]

Discovering a new Hero Power

Patch changes[edit | edit source]

  • Scholomance Academy logo.png Server-side patch (2020-08-13):
    • Discover cards can no longer Discover themselves randomly.
    • Cards that 'generate a random card' can no longer generate themselves.
Dev comment: Overall, this change is aimed at helping games feel a bit more varied. While generating the same card can be an exciting individual moment, these types of experiences tend to have diminishing returns after a while. These adjustments should make for healthier games against classes with a ton of resource generation.
For more info and examples, see Game Mechanics Updates.
  • Saviors of Uldum logo.png Patch 15.2.0.33717 (2019-09-10): 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.

References[edit | edit source]