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Potion of Polymorph
Set:Mean Streets of GadgetzanMean Streets of Gadgetzan
Spell school:Arcane
Cost:3 Mana icon.png
Abilities:Secret, Transform
Wiki tags:Beast-generating
Artist:Arthur Bozonnet
Secret: After your opponent plays a minion, transform it into a 1/1 Sheep.
Flavor text

Tastes like Baaaaananas.

External links

Data pageHearthpwn

Potion of Polymorph is an rare mage spell card, from the Mean Streets of Gadgetzan set.

How to get[]

Potion of Polymorph can be obtained through Mean Streets of Gadgetzan card packs, or through crafting.

Card Crafting cost Disenchanting
Potion of Polymorph 100 20
Golden Potion of Polymorph 800 100

Generated by[]

As well as being collected in decks, this card can also be generated by the following card.

Kabal Chemist(49690).png

Transformed minions[]



  • As stated in the card text, this Secret does not activate until after the minion has been summoned, including the activation of any Battlecries.
    • Sacred Trial, Mirror Entity, Snipe, Repentance and Potion of Polymorph all trigger in order of play.
    • Potion of Polymorph will not trigger if the minion is mortally wounded (such as by Snipe) or pending destroy (such as by Sacred Trial).[1]
    • Sacred Trial, Mirror Entity, Snipe and Repentance will all trigger after Potion of Polymorph, and will copy/effect the sheep, not the original minion. (After Summon triggers, like Knife Juggler, will also trigger for the sheep.)[2]
  • Flobbidinous Floop will copy the Sheep spawned off of Potion of Polymorph as the last played minion.

Fixed bugs[]

  • Before Patch 7.1, After Play/After Summon triggers (Mirror Entity, Knife Juggler, etc) did not trigger on the Sheep created by Potion of Polymorph.[3]
  • Before Patch 7.1, Potion of Polymorph could trigger on pending destroy minions. For example, if you played Sacred Trial then Potion of Polymorph, the pending destroy minion would be transformed into a Sheep, wasting the effect of Sacred Trial. As a negative conditional effect, Potion of Polymorph should decide not to trigger in such a circumstance (similar to Freezing Trap.)[4]


Potion of Polymorph is best played when you expect your opponent to try to play a big minion such as Flamewreathed Faceless or Twilight Drake. However, if the card was created via Kabal Chemist, your opponent can check the game history and see how the Secret was made - thus enabling them to toss out a worthless minion to bait it out. Moreso, it has the same cost as Mirror Entity, which veteran players will usually follow the same strategy; play a low cost minion they can deal with and waste your Secret. In this same respect, some players may fall victim to the idea of using Mirror Entity against you, such as playing Doomsayer to guarantee an activation via your duplicate at the start of your turn - making the Doomsayer turn into a worthless 1/1 Sheep that can be easily pinged away.


Potion of Polymorph, full art

Patch changes[]