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On-discard effects are card effects which activate when that card is discarded from the player's hand. These effects are not activated if the card is overdrawn, due to attempting to draw the card while having a full hand; discarded from the deck by effects such as Fel Reaver; or destroyed through any other means.[1]

On-discard effects are comparable to Deathrattles in that they activate when the card itself is removed from the game. They are distinguished from other discard-related effects such as Malchezaar's Imp which activate when another card is discarded.

There are currently only four cards with on-discard effects: the warlock spell Fist of Jaraxxus, and the warlock minions Silverware Golem, Clutchmother Zavas, and High Priestess Jeklik. The mechanic fits well with the warlock class, which has a strong relationship with discard effects.


On-discard effects act to mitigate the downside of discarding cards, giving the player a significant advantage when they discard these specific cards. This rewards discard effects such as Succubus, Doomguard and Deathwing, saving the player mana, improving tempo, and potentially saving other cards from being discarded.


Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Boneweb Egg Rare Minion General Warlock 2 0 2 Deathrattle: Summon two 2/1 Spiders. If you discard this, trigger its Deathrattle.
Hand of Gul'dan Common Spell Shadow Warlock 6 When you play or discard this, draw 3 cards.
Showing all 2 cards
Boneweb Egg(329883).png
Hand of Gul'dan(210809).png

Wild format

Wild icon.pngThis section concerns content exclusive to Wild format.
Name / Desc Rarity Type Subtype Class Cost Atk HP Description
Clutchmother Zavas Legendary Minion Beast Warlock 2 2 2 Whenever you discard this, give it +2/+2 and return it to your hand.
Silverware Golem Rare Minion General Warlock 3 3 3 If you discard this minion, summon it.
Fist of Jaraxxus Rare Spell Fel Warlock 4 When you play or discard this, deal 4 damage to a random enemy.
High Priestess Jeklik Legendary Minion General Warlock 4 3 4 Taunt, Lifesteal
When you discard this, add 2 copies of it to your hand.
Showing all 4 cards
Clutchmother Zavas(55464).png
Silverware Golem(42037).png
Fist of Jaraxxus(22332).png
High Priestess Jeklik(90182).png

Patch changes[]


  1. Whirthun on Twitter. (2015-08-07).