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 Sen'jin Shieldmasta, a simple minion card. It has 3 Attack, 5 Health and a mana cost of 4.

Attributes are key values which define the power, cost, and survivability of a character, weapon, or location. Attributes of some kind are found on all cards, as well as heroes.

  • Mana cost is the only attribute present on all types of cards, determining how much mana it costs to play that card
  • Attack is present on all minion and weapon cards, determining how much damage they can deal
  • Health and Armor serve to counter damage suffered, determining the survivability of minions and heroes
  • Durability determines the number of times a weapon or location can be used before being destroyed

Attack and Health (or Durability for weapons and locations) are commonly referred to as stats (statistics), and certain effects such as  Darkspeaker can swap stats between cards. Stats are often presented numerically in the form Attack/Health, and minions are often referred to by their stats. For example a "2/3" is a minion with 2 Attack and 3 Health. Weapons can also be referred to by their stats; a "5/2 weapon" has 5 Attack and 2 Durability. The other attributes, Armor and mana cost, are not considered stats for game purposes, although some players consider mana cost to be a stat.

Attack[edit | edit source]

For the act of attacking, see Attack.

Attack measures a character or weapon's capacity to deal damage, and is found on all minion and weapon cards. The current Attack value is shown in the bottom left, set against a single sword for heroes and minions, or a pair of crossed swords for weapons.

When characters engage in combat, they deal damage to each other equal to their Attack values. Characters with zero Attack (e.g.,  Shieldbearer,  Nat Pagle, or many heroes) cannot be commanded to attack targets, but if their Attack attributes are increased, they immediately become able to attack.

Heroes by default have zero Attack, but can equip weapons and use abilities to grant them an Attack value. Equipping a weapon will automatically increase the hero's Attack by an amount equal to the weapon's Attack, but only during their own turn. Effects such as  Heroic Strike,  Demon Claws or  Shapeshift can also increase a hero's Attack, but only temporarily, and only during their own turn. Since heroes have no Attack value on the opponent's turn, they usually deal no damage when attacked, and deal nearly all their damage when attacking. However, their Attack attribute will deal defensive damage if they are somehow attacked on their own turn.

Numerous effects can be used to alter a character's Attack value. Most increase the Attack, either permanently (e.g.  Shattered Sun Cleric,  Mark of the Wild) or temporarily (e.g.  Dark Iron Dwarf,  Savage Roar), while a few decrease Attack (e.g.  Shrinkmeister) or set it to a specific value (e.g.  Humility,  Aldor Peacekeeper). If a character's Attack value would be reduced below 0, 0 is displayed and used instead. For example, using a Shrinkmeister's Battlecry on a  Wrath of Air Totem will not result in any change to the Totem's Attack value, and if you then buff it with  Abusive Sergeant's Battlecry the Totem's Attack will still be 0.

Related cards[edit | edit source]

For Wild format listings, see Attack/Wild format.

Swipe left or right to see the cards.
ETC 076.png
TTN 920t7.png
UPCOMING 108625.png
DEEP 012.png
TOY 375t.png
UPCOMING 105559.png
MIS 025t.png
TOY 813t.png
TOY 652t.png
CORE EX1 059.png
ETC 385.png
TTN 078.png
CORE CS2 234.png
CORE RLK 087.png
WW 809.png
UPCOMING 108887.png
TTN 080.png
ETC 420.png
UPCOMING 106442.png
ETC 305.png
UPCOMING 106063.png
CORE EX1 005.png
TOY 824.png
TTN 465.png
TTN 483.png
CORE EX1 197.png
ETC 384.png
YOG 506.png
UPCOMING 107771.png
UPCOMING 106679.png
TOY 820.png
YOG 509.png
TOY 894.png
UPCOMING 106450.png
TOY 375.png
WW 814.png
MIS 025.png
TOY 813.png
TOY 652.png
WW 346.png
UPCOMING 106618.png
ETC 328.png
CORE GVG 008.png
TTN 487.png
TOY 896.png
TOY 829.png
TTN 857.png
ETC 386.png
TOY 960.png
UPCOMING 108627.png
MIS 025t1.png
UPCOMING 108614.png
TOY 357.png
UPCOMING 107769.png
ETC 840.png

Health[edit | edit source]

Main article: Health

Health, sometimes colloquially referred to as life, hit points or HP, is an attribute found on heroes and minions, reflecting the remaining survivability of the character. If a character's Health is reduced to 0 (or lower) that character will be destroyed. Health is displayed at the bottom right corner of each character's card or portrait, set against a red drop of blood.

Unlike other stats, Health has both a current and a maximum value. Taking damage will reduce the current Health value, while healing effects can increase the current value, up to the maximum; enchantments can also change the maximum Health value. Characters below maximum Health are considered "damaged", which can enable certain effects such as Enrage. Each character enters play at maximum Health.

Armor[edit | edit source]

Main article: Armor

Armor is a form of secondary Health available only to heroes, gained through certain spells, Hero Powers and minions. Damage taken will always be deducted from Armor before Health. Only when a character has no armor or is reduced to 0 Armor will they lose Health from a damaging attack. Armor can effectively extend a hero's Health far beyond the 30 points otherwise allowed. Armor is only shown when present, in which case it is shown on the centre right of the hero, just above the Health icon, set against a silver, unbroken shield.

Obtained only through specific effects, Armor is largely unavailable to most classes. It is most strongly associated with the warrior class, followed by the druid class.

Durability[edit | edit source]

Durability is an attribute found on weapons and locations, although it is also displayed on heroes who have weapons equipped. It reflects the number of times that card can be used. For weapons, each time one is used to attack, it will lose one point of Durability. For locations, each time one's ability is used, it will lose one point of Durability. When a weapon or location reaches 0 Durability, it will be destroyed. Durability is shown in place of the Health stat, in the bottom right corner of the card display, on an icon depicting a rent shield.

Weapons[edit | edit source]

On weapons, Durability is only lost when the possessing hero directly attacks a target. Durability therefore is not lost if the possessing hero is attacked during the opponent's turn (since the weapon will not be used), and even in the few cases where it is possible for the hero to be attacked by a minion during their own turn (and the weapon does deal damage), Durability will still not be reduced. This prevents plays such as  Misdirection from punitively sapping a weapon's Durability beyond the player's control.

Certain cards and effects can directly affect a weapon's Durability, such as the warrior spell  Upgrade! and the Pirate minion  Bloodsail Corsair's Battlecry, and some weapons such as  Eaglehorn Bow and  The Fist of Ra-den have such effects built-in. See below for a list.

Durability is not lost if the weapon is Immune. Some cards that prevent durability loss, such as  Gorehowl and  Runeforge Haunter, work by granting Immune to the weapon.

Locations[edit | edit source]

On locations, Durability is lost every time the location's ability is successfully used.

Durability on locations is currently only affected or modified by using that location's ability, as there are no cards that affect or relate to a location's durability.

Related cards[edit | edit source]

For Wild format listings, see Durability/Wild format.

Swipe left or right to see the cards.
ETC 102.png
ETC 084.png
ETC 312.png
DEEP 012.png
ETC 521.png
WW 347.png
TOY 373t.png
UPCOMING 106675.png
CORE GIL 672.png
UPCOMING 105512.png
UPCOMING 106618.png

Mana cost[edit | edit source]

Main article: Mana cost

Mana cost determines how much mana is required to play a card from the hand, or use a Hero Power. The number is displayed inside a blue crystal in the upper left corner of each card, and at the top of each Hero Power. When a card is played or a Hero Power used, its mana cost is deducted from the player's supply of mana for that turn. Some effects can modify mana costs, although no mana cost can ever be less than zero.

Exchanging stats[edit | edit source]

While each stat is generally quite separate to and unaffected by the other stats, certain effects can allow them to directly influence or be exchanged for each other.

Examples include  Crazed Alchemist,  Lightspawn,  Gorehowl,  Reversing Switch and  Inner Fire. Effects such as  Inner Rage and  Cruel Taskmaster's Battlecry also serve to trade one stat for another.

Notes[edit | edit source]

Stat numbers are able to climb as high as 10 digits, with Attack and Health values as high as 2,147,483,647 recorded in-game.[1][2] Minions have been shown to "reset" to 0 Attack[3] or Health upon exceeding 2 billion by a large enough margin.[4] This is likely due to programming limits to stat sizes: integers are commonly stored with 32 bits, so exceeding 31 bits would cause the number to loop around to negative values. The highest possible Health has indeed been proven to be 231-1 (2,147,483,647),[1] and it is suspected that other attributes have the same maximum. Assuming this is correct, negative Attack or Max Health appear to be displayed as simply 0. In the case of Attack, this hidden negative value can make the attribute appear "stuck" at 0 even when further buffs are applied,[3] since the underlying number is actually far less than 0. Non-positive Health, on the other hand, simply results in the immediate death of the minion.

Aside from the maximum value, other anomalies have been found when Hearthstone does calculations with large stat values. These have been hypothesized to be due to floating-point arithmetic used during some effects, leading to lower precision and the somewhat inaccurate arithmetic that was observed, but also reduced vulnerability to the integer overflow described above.[1]

Patch changes[edit | edit source]

  • Hearthstone logo.png Patch (Open beta, 2014-03-11): Minions that freeze a hero by damaging them now always freeze them, even if it only damages armor.

References[edit | edit source]