Casts When Drawn

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Casts When Drawn is an ability which activates when that card is successfully drawn from the deck.

Some of the effects used by the Casts When Drawn ability deal damage, while others cause the card to self-destruct and to draw another card to replace it. 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 are distinguished from general draw-related triggered effects, which activate when another card is drawn.

Notes[edit | edit source]

  • Casts When Drawn is only activated through successful card draw. Overdrawing a card with an on-draw effect (attempting to draw it when the player already has a full hand) will not activate its on-draw effect.[4][5]
  • 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.
  • On-draw effects which include card draw effects can themselves activate on-draw effects for the cards they draw. This process can repeat indefinitely, potentially creating a lengthy chain of on-draw effects.[9]
  • Technically, cards with on-drawn effects can be seen to occupy a space in the player's hand prior to their activation, suggesting on-draw effects are in fact a special type of in-hand effect.

Cards[edit | edit source]

For Wild format listings, see Casts When Drawn/Wild format


For Wild format listings, see Casts When Drawn/Wild format

The following minions are generated by other cards or effects, and are uncollectible.

Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Bomb None Spell Any 1
Casts When Drawn
You take 5 damage. 
Darkness Candle None Spell Any 4
Casts When Drawn
Snuff out a candle. 
Scroll of Wonder None Spell Mage 5
Casts When Drawn
Cast a random spell. 
Spider Ambush! None Spell Rogue 4
Casts When Drawn
Summon a 4/4 Spider. 
Showing all 4 cards
Darkness Candle(76988).png
Scroll of Wonder(76943).png
Spider Ambush!(76915).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, neutralising 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.

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).