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Refreshing Mana Crystals is the refilling of a player's empty Mana Crystals, thus restoring their mana. This effect is distinguished from gaining new Mana Crystals: refreshing the player's mana only refills existing Mana Crystals, and does not grant new ones.


  • Mana refreshing grants temporary Mana Crystals. Prior to Patch 18.2, mana refreshing granted filled Mana Crystals.
  • When the player has Overloaded Mana Crystals, the maximum amount of mana that can be refreshed is reduced by the number of Mana Crystals overloaded.
  • Effects that clear current pending Overloaded mana (Lava Shock and Eternal Sentinel) are similar to a Mana Refresh effect, since the Overloaded Mana Crystals they unlock are refilled.


Refreshing the player's Mana Crystals acts to counter the mana expended in playing the card, effectively making the card free to play, provided the player has enough mana to play it in the first place.

Mana Refreshing can also be thought of as an alternate form of cost-reduction, as compared to the effects of Kalecgos or Kael'thas Sunstrider.


Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Mana Biscuit Spell General Mage 0 Refresh 2 Mana Crystals.
Darkglare Epic Minion DEMON WARLOCK 3 3 4 After your hero takes damage, refresh a Mana Crystal.
Refreshing Spring Water Common Spell General Mage 5 Draw 2 cards. Refresh 2 Mana Crystals for each spell drawn.
Forest Warden Omu Legendary Minion General Druid 6 5 4 Spellburst: Refresh your Mana Crystals.
Showing all 4 cards
Mana Biscuit(442258).png
Refreshing Spring Water(464150).png
Forest Warden Omu(329942).png

Wild format

Wild icon.pngThis section concerns content exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Kun the Forgotten King Legendary Minion General Druid 10 7 7 Choose One - Gain 10 Armor; or Refresh your Mana Crystals.
Showing the only card
Kun the Forgotten King(49628).png

See also[]

Patch changes[]

  • Scholomance Academy logo.pngPatch (2020-09-08): When refilling an existing mana crystal below 10 mana, you now receive a temporary mana crystal instead. This fixes an interaction where Forest Warden Omu would not grant the correct amount of mana.[1]
    • Example: The player has 6 Mana Crystals and plays a 6-mana Forest Warden Omu. Next, The Coin is used, gaining 1 temporary Mana Crystal, but Forest Warden Omu's effect will refresh only the remaining 5 empty Mana Crystals.


  1. Chadd Nervig on Twitter. (2020-08-07).