Damage

Damage Events

Damaging effects and combat damage work by creating and resolving Damage Events:

• Damaging effects that affect a single target create one Damage Event, and then immediately resolve it.
• Usually, damaging effects with an area of effect (i.e., effects that deal damage to all characters of a certain type) first create all Damage Events (one for each affected character, in play order), and then resolve all Damage Events (queuing and resolving triggers) in play order. Exceptions are:
  • Swipe creates Damage Events first for the target character and then for all other enemy characters in reverse play order; Damage Events are then resolved in the same order.
  • Lightning Storm, Elemental Destruction and Lightbomb, although still figuring out the set of minions they will damage before beginning to damage anything, resolve each Damage Event as soon as it is created in play order.

Example: Frothing Berserker will activate as older minions are damaged by Lightbomb and may grow large enough in Attack to subsequently get killed by Lightbomb.

• Some damaging effects that affect "multiple targets" (Bouncing Blade, Greater Arcane Missiles, Cobra Shot and all the effects that "deal a certain amount of damage randomly split among all characters with a given characteristic") shoot a number of individual "missiles" each with a random target: each missile creates a Damage Event which is immediately resolved, before choosing at random the target for the next missile.
  • Spells that deal a certain amount of damage randomly split among all characters with a given characteristic (Arcane Missiles, Spreading Madness, Avenging Wrath, Volcano and Timepiece of Horror) interact with Spell Damage and Prophet Velen in the following way: in order to determine the total damage of the spell, take its base damage, add its controller's Spell Damage bonus (if any) and then, if its controller also controlled an unsilenced Prophet Velen since the last Aura Update (Other) Step, double the total damage (multiple Prophet Velens stack); the spell will then shoot that number of missiles, each one still having a proposed damage of 1 regardless of its controller's Spell Damage and Prophet Velens.
• All other damaging effects that affect "multiple targets" first create all Damage Events in a given order, then resolve all Damage Events in the same order:
  • Multi-Shot, Forked Lightning and Cleave deal damage in random order;
  • Explosive Shot and Powershot deal damage in the order center-left-right;
  • Cone of Cold deals damage in the order left-right-center;
  • Betrayal makes target minion create two Damages Events in the order left-right. Notice that the source of the Damage Event is the minion, not the spell: thus bonuses from Spell Damage and Prophet Velen do not apply, while minion abilities like poison, Water Elemental or Mistress of Pain do apply;
  • after they attacked a minion, Magnataur Alpha and Foe Reaper 4000 deal damage in the order left-right.
• When combat damage is dealt, first the two Damage Events are created in the order attack-counterattack, and then they are resolved in the same order.

Spells and effects with two steps (such as Mortal Coil and Slam) resolve all Damage Events before querying the target's condition or moving to their next step:

• Holy Nova creates and resolves all Damage Events, then creates and resolves all Healing Events (even if the Healing Events are turned into Damage Events by Auchenai Soulpriest or Embrace the Shadow);
• Blizzard creates and resolves all Damage Events, then freezes all enemy minions (even undamaged ones);
• Cone of Cold creates and resolves all Damage Events, then freezes the affected minions (even if the damage was reduced to 0 by Divine Shield);
• Imp-losion deals damage then queries how much damage was dealt: for example, Divine Shield sets the damage to 0, while Commanding Shout does not modify how much damage was considered to be dealt.

Creating a Damage Event

Each Damage Event has its own source (usually, the minion or the damaging effect that creates it; the only exception is Betrayal, whose Damage Events have the targeted minion as their source), its own target and a proposed damage:

• most damaging effects have as proposed damage a fixed number explicitly stated in their text (for example, Arcane Shot simply reads "Deal 2 damage");
• each Damage Events created by effects that deal a certain amount of damage randomly split among all characters with a given characteristic has a proposed damage of 1;
• some damaging effects' proposed damage varies depending on the damage dealt by a source (Eye for an Eye, Wrathguard, Bolf Ramshield), on the cost of a card (Holy Wrath, Cho'gall, Seadevil Stinger), on available mana (Forbidden Flame), on current Armor (Shield Slam), or on the Attack value of a hero (Savagery), wapon (Blade Flurry) or minion (Shadowflame, Lightbomb, Sergeant Sally, Betrayal, Magnataur Alpha, Dispatch Kodo, Knuckles, C'Thun, Foe Reaper 4000), and can happen to be zero;
• Damage Events created by healing effects due to Auchenai Soulpriest or Embrace the Shadow have a proposed damage equal to the proposed healing of the replaced Healing Event (see healing for details);
• Damage Events created during combat by the attacker and the defender have a proposed damage equal to the Attack value of that character.
• Damage Events created by Fatigue have a proposed damage equal to 1 plus the number of times Fatigue has already dealt damage to that player. Note that the Fatigue counter never resets, even if the player replaces their Hero or restocks their deck through shuffle into deck effect and successfully draws cards for a while.

Proposed damage can then be increased by the following bonuses:

• If the source of the Damage Event is a spell (other than Arcane Missiles, Avenging Wrath, Spreading Madness, Volcano, Timepiece of Horror, Ancient Curse, Burrowing Mine and Cursed!), add its controller's Spell Damage bonus (if any) to the proposed damage.
  • If the source of the Damage Event is Arcane Blast, add twice that bonus instead.
• If the source of the Damage Event is a Hero Power and its controller also controls an unsilenced Fallen Hero since the last Aura Update (Other) Step, add its bonus to the proposed damage; multiple Fallen Heroes stack.
• Then, if the the source of the Damage Event is a spell (other than Arcane Missiles, Avenging Wrath, Spreading Madness, Volcano, Timepiece of Horror, Ancient Curse, Burrowing Mine and Cursed!) or a Hero Power and its controller also controlled an unsilenced Prophet Velen since the last Aura Update (Other) Step, double the proposed damage of the Damage Event; multiple Prophet Velens stack.

Then, if the target is Immune or the Damage Event's proposed damage is 0, the Damage Event is prevented and has no other consequences. Otherwise, continue with the following steps, in order.

• If the target has Divine Shield, the Divine Shield is removed and the Damage Event's proposed damage is reduced to 0.
• If the target of the Damage Event is a hero, predamage triggers queue and resolve: Animated Armor has an early priority and always triggers first, and then Bolf Ramshield and Ice Block trigger in order of play. Notice that, whenever a predamage trigger queries how much is the proposed damage of a Damage Event that targets a hero, any Cursed Blade equipped by that hero will double the reported damage.

• Animated Armor triggers if the Damage Event has a proposed damage greater than 1, reducing the proposed damage of the Damage Event to 1.

Example: Animated Armor normally does not trigger if a hero takes 1 damage, but Cursed Blade's effect doubles the reported damage to 2 and thus Animated Armor will trigger for no effect in this scenario.

• Bolf Ramshield prevents the Damage Event, then creates a new Damage Event whose source and proposed damage are the same as the original Damage Event's but whose target is Bolf Ramshield (and thus "when this minion deals damage" triggers will still run). If a player has multiple Bolf Ramshields in play, only the first one to enter play will trigger and intercept the damage when their hero takes damage.
• Ice Block triggers if the Damage Event's proposed damage is greater than or equal to its hero's current Health, preventing the Damage Event and creating an Enchantment attached to the hero which says "Become Immune until the turn ends".

• Cursed Blade then doubles the proposed damage of Damage Events targeting your hero.

Finally, the character's current Health+Armor is reduced by the Damage Event's proposed damage: damage is deducted from Armor first, and any damage beyond the character's current Armor is then deducted from their Health.

• If the target is affected by Commanding Shout, its current Health is prevented from dropping below 1; however, Commanding Shout does not modify how much damage was considered to be dealt (for example when queried by Imp-losion).

Resolving a Damage Event

If the Damage Event was prevented or if it did not change the character's current Health+Armor total (including due to Divine Shield and Commanding Shout), it will not run any triggers.

Otherwise, Triggered effect#Character damage (listed in the following table) queue and resolve in play order.

Finally, if the source of the Damage Event is a minion, it loses Stealth (even if the Damage Event's proposed damage is 0, but not if the Damage Event was prevented).

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