Casts When Drawn

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Casts When Drawn is an ability on spells which activates when the spell is drawn from the deck, causing the spell to be cast instantly, without spending any Mana. After it resolves, the player draws another card to replace the cast spell in their hand so that they do not miss their draw.

Casts When Drawn is featured exclusively on spells that are shuffled into a player's deck via other cards. Some cards with Casts When Drawn are shuffled into the opponent's deck, with negative effects once drawn; other cards are shuffled into the player's own deck, with positive effects for the player.

Casts When Drawn is distinguished from general draw-related triggered effects, which activate when any card is drawn.

Notes[edit | edit source]

  • Casts When Drawn is only activated through regular card draw. It is not triggered if the card is chosen during the mulligan, put directly into the player's hand or returned to the hand.[1][2]
    • Casts When Drawn is not triggered when the card is copied or generated in the hand.[3] For example, drawing a Nerubian Ambush! with a Chromaggus on the board will generate a copy in the player's hand; the original Nerubian Ambush! will cast itself automatically, but the copy will not be cast. However, in some cases copied cards have been known to cast themselves automatically due to bugs.
  • Casts When Drawn is only activated through successful card draw. Overdrawing a Casts When Drawn card will not activate its on-draw effect.[4][5]
  • Casts When Drawn is not activated if the card is removed from play, such as through being removed from the deck or discarded by Tracking.[6][7][8]
  • Casts When Drawn effects reveal the card to both players, at the moment when the effect takes place. The card is then added to the player's hand (unless the on-draw effect has itself destroyed the card) and cast.
  • If the card drawn to replace a Casts When Drawn card is another Casts When Drawn card, the second card will still cast itself. This can potentially create a lengthy chain of on-draw effects.[9]
  • Casts When Drawn cards can be seen to occupy a space in the player's hand prior to their activation, suggesting that their effects are in fact a special type of in-hand effect.
  • "Casts When Drawn" is unique to spells. Other on-draw effects, like that of Flame Leviathan, do not use this keyword since the cards are not "cast" when drawn.

Cards[edit | edit source]

Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Soul Fragment None Spell 0
Casts When Drawn
Restore 2 Health to your hero. 
Felhound Portal None Spell Any 2
Casts When Drawn
Summon a 2/2 Felhound with Rush
Tickets None Spell Rogue 3
Casts When Drawn
Summon a 3/3 Plush Bear. 
Shadow None Spell Rogue 4
Casts When Drawn
Summon a {0}. 
Bomb None Spell Any 5
Casts When Drawn
You take 5 damage. 
Waxadred's Candle None Spell Rogue 5
Casts When Drawn
Summon Waxadred. 
Dream Portal None Spell Druid 9
Casts When Drawn
Summon a random Dragon. 
Showing all 7 cards
Soul Fragment(330067).png
Felhound Portal(91015).png
Tickets(388959).png
Shadow(90788).png
Bomb(89894).png
Waxadred's Candle(151448).png
Dream Portal(127282).png


Wild format

Wild icon.png  This section contains information exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Corrupted Blood None Spell Any 1
Casts when Drawn
Take 3 damage. After you draw, shuffle two copies of this into your deck. 
Nerubian Ambush! None Spell Rogue 3
Casts When Drawn
Summon a 4/4 Nerubian for your opponent. 
Ancient Curse None Spell Any 4
Casts When Drawn
You take 7 damage. 
Darkness Candle None Spell Any 4
Casts When Drawn
Snuff out a candle. 
Spider Ambush! None Spell Rogue 4
Casts When Drawn
Summon a 4/4 Spider. 
Scroll of Wonder None Spell Mage 5
Casts When Drawn
Cast a random spell. 
Burrowing Mine None Spell Warrior 6
Casts When Drawn
You take 10 damage. 
Showing all 7 cards
Corrupted Blood(90191).png
Nerubian Ambush!(22435).png
Ancient Curse(27503).png
Darkness Candle(76988).png
Spider Ambush!(76915).png
Scroll of Wonder(76943).png
Burrowing Mine(12345).png

Sources of Casts When Drawn[edit | edit source]

Casts When Drawn-generating cards[edit | edit source]

This section lists cards which generate Casts When Drawn spells.

Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Spirit Jailer Common Minion Demon 1 1 3
Battlecry: Shuffle 2 Soul Fragments into your deck. "Sure, they're in your deck, but the mind is like, the REAL prison."
School Spirits Common Spell Warlock 3
Deal 2 damage to all minions. Shuffle 2 Soul Fragments into your deck. "B-E A-G-G-R-E-S-S-I-V-E!"
Marrowslicer Common Weapon Demon Hunter 4 4 2
Battlecry: Shuffle 2 Soul Fragments into your deck. Perfect for killing the first boss in Icecrown Citadel.
Soul Shear Rare Spell 2
Deal 3 damage to a minion. Shuffle 2 Soul Fragments into your deck. "Just a little off the sides please."
Clockwork Goblin Rare Minion Mech Warrior 3 3 3
Battlecry: Shuffle a Bomb into your opponent's deck. When draw, it explodes for 5 damage. They always end up bombing.
Ticket Master Rare Minion General Rogue 3 4 3
Deathrattle: Shuffle 3 Tickets into your deck. When drawn, summon a 3/3 Plush Bear. You can exchange one ticket for a bear or save up thousands for a tacky light-up paperweight!
Portal Keeper Rare Minion Demon Any 4 5 2
Battlecry: Shuffle 3 Portals into your deck. When drawn, summon a 2/2 Demon with RushNo longer allowed to be "it" when playing demon tag.
Shadow of Death Epic Spell Rogue 4
Choose a minion. Shuffle 3 'Shadows' into your deck that summon a copy when drawn. Making new friends takes skill.
Wrenchcalibur Epic Weapon Warrior 4 3 2
After your hero attacks, shuffle a Bomb into your opponent's deck. Whoso pulleth out this wrench from the toolbox is rightwise king of the lab.
Portal Overfiend Epic Minion Demon Any 6 5 6
Battlecry: Shuffle 3 Portals into your deck. When drawn, summon a 2/2 Demon with RushIt's like an interdimensional game of demon tag.
Waxadred Legendary Minion Dragon Rogue 5 7 5
Deathrattle: Shuffle a Candle into your deck that resummons Waxadred when drawn. Waxadred the dragon fought for his king, frolicking through the fields melting everything!
Ysera, Unleashed Legendary Minion Dragon Druid 9 4 12
Battlecry: Shuffle 7 Dream Portals into your deck. When drawn, summon a random Dragon. Releash the Dragon!
Showing all 12 cards
Spirit Jailer(329923).png
Soul Shear(329929).png
Clockwork Goblin(90573).png
School Spirits(329930).png
Ticket Master(378842).png
Marrowslicer(329924).png
Portal Keeper(90665).png
Shadow of Death(90785).png
Wrenchcalibur(90572).png
Waxadred(127292).png
Portal Overfiend(90664).png
Ysera, Unleashed(127264).png


Wild format

Wild icon.png  This section contains information exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Ancient Shade Rare Minion General Any 4 7 4
Battlecry: Shuffle an 'Ancient Curse' into your deck that deals 7 damage to you when drawn. Warning: Do not expose to direct sunlight.
Beneath the Grounds Epic Spell Rogue 3
Shuffle 3 Ambushes into your opponent's deck. When drawn, you summon a 4/4 Nerubian. Can you hold these eggs for just a second? I promise they're not full of giant enraged undead spider things.
Fal'dorei Strider Epic Minion General Rogue 4 4 4
Battlecry: Shuffle 3 Ambushes into your deck. When drawn, summon a 4/4 Spider. What's worse? Seeing the spider, or NOT seeing the spider, but knowing it's somewhere in your deck?
Deck of Wonders Epic Spell Mage 5
Shuffle 5 Scrolls into your deck. When drawn, cast a random spell. "Pick a card, any card. Wait! No! Not that one!" - Last words of previous owner
Seaforium Bomber Epic Minion General Any 5 5 5
Battlecry: Shuffle a Bomb into your opponent's deck. When drawn, it explodes for 5 damage. Dress for the bomb you want, not the bomb you have.
The Darkness Legendary Minion General Any 4 20 20
Starts Dormant.
Battlecry: Shuffle 3 Candles into the enemy deck. When drawn, this awakens. I would rather light a single candle than curse the darkness. But I'm willing to do both.
Iron Juggernaut Legendary Minion Mech Warrior 6 6 5
Battlecry: Shuffle a Mine into your opponent's deck. When drawn, it explodes for 10 damage. The Iron Juggernaut guards Orgrimmar and has just earned the "Employee of the Month" award!
Hakkar, the Soulflayer Legendary Minion General Any 10 9 6
Deathrattle: Shuffle a Corrupted Blood into each player's deck. ATTENTION: Do not enter any major city while infected with the Corrupted Blood!
Showing all 8 cards
Beneath the Grounds(22397).png
Ancient Shade(27245).png
Fal'dorei Strider(76914).png
The Darkness(76986).png
Deck of Wonders(76942).png
Seaforium Bomber(89887).png
Iron Juggernaut(12295).png
Hakkar, the Soulflayer(90190).png

Strategy[edit | edit source]

  • Due to the nature of card draw, Casts When Drawn cards are difficult to predict or prevent. This can make it hard to plan around their useful effects, or give the player a chance to evade their drawbacks.
  • There are a few ways players can avoid activating enemy on-draw effects that have been shuffled into their decks. Tracking is particularly useful for this, neutralizing any on-draw effects displayed. However, the most common way is to intentionally maintain a full hand, causing any further cards to be overdrawn. While drastic, this can be an effective strategy and in the right circumstances a desirable trade off, such as if facing lethal from a Burrowing Mine while the opponent's hand and board are empty. This is most viable for control decks, and is especially relevant for Freeze Mages trying to prevent a Burrowing Mine from circumventing their Ice Block. More aggressively, Fel Reaver can be intentionally employed to mill the player's own deck.

Trivia[edit | edit source]

  • Before Patch 12.2.0.26996 added the Casts When Drawn keyword, cards with this ability featured text with the same format: "<Spell effect>. Draw a card. Cast this when drawn."

Patch changes[edit | edit source]

References[edit | edit source]

  1. Ben Brode on Twitter. (2014-12-02). 
  2. Zeriyah on Twitter. (2015-03-30). 
  3. Zeriyah on Twitter. (2015-03-30). 
  4. Whirthun on Twitter. (2015-08). 
  5. Zeriyah on Twitter. (2014-12-02). 
  6. Whirthun on Twitter. (2015-08-20). 
  7. Zeriyah on Twitter. (2014-12-02). 
  8. Ben Brode on Twitter. (2014-12-03). 
  9. Today In Hearthstone Ep. 145 Ambush. (2016-02-21).