Damage block

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Kraken Shell icon.png

Damage block is a mechanic that reduces physical attack damage a unit takes by a flat amount. Most damage block abilities are chance-based and passive.

Mechanics[edit]

Axe blocking damage with Vanguard. The ocre number displays the total amount of damage blocked.

Damage block reduces any physical damage a unit takes from attacks or from cleave, with the exception of damage dealt by the attacks of ward-type units. Damage block does not trigger against physical spell damage, with the exception of the spells listed below. Unlike armor, damage block reduces a fixed amount of damage, instead of a percentage.

When damage block triggers, it blocks damage before other damage reducing effects do. This means that the higher the unit's armor is, the less effective damage block gets. See final attack damage for the complete calculation.

All chance-based sources of damage block use pseudo-random distribution.

Blocked spell damage[edit]

The following spells' damage is blocked by damage block.

1 Only returned/reflected physical damage is blocked. Magical and pure damage is not blocked.

Visual feedback[edit]

When a damage block occurs, a ocre-colored negative number pops up on the blocking unit, with a shield icon on the right side of the number. This number shows the exact amount of damage blocked.

Stacking[edit]

Main Article: Item passive stacking

When having multiple sources of damage block, and both trigger on the same damage instance, the damage block with the higher block value takes priority, while the lower one does nothing. This means their proc chances stack, working independently from each other, but their effects do not stack, resulting in a diminishing behavior.

Example:
When having two Stout Shield icon.png Stout Shields, the chance of blocking damage becomes:

1 - (0.5 × 0.5) = 75%

When having one Stout Shield icon.png Stout Shield and one Vanguard icon.png Vanguard, the chance of blocking damage becomes:

50% chance for Vanguard to proc, and 50% × 50% = 25% chance for Stout Shield to proc

This is because half of the time Stout Shield procs at the same time as Vanguard does, but since Vanguard has the higher block values, Vanguard gets prioritized, effectively negating half of the Stout Shield procs.

Sources of damage block[edit]

  • Abyssal Blade icon.png
    Proc Chance: 50%
    Blocked Damage (Melee): 70
    Blocked Damage (Ranged): 35
  • Crimson Guard - [[Crimson Guard#|]]
    Crimson Guard icon.png
    Proc Chance: 50%
    Blocked Damage (Melee): 70
    Blocked Damage (Ranged): 35
    This is an old ability.
  • Crimson Guard - [[Crimson Guard#|]]
    Crimson Guard icon.png
    Proc Chance: 100%
    Blocked Damage: 60
    Duration: 12
    Buff is applied to all allied heroes within 1200 AoE of the caster.This is an old ability.
  • Stout Shield icon.png
    Proc Chance: 50%
    Blocked Damage (Melee): 20
    Blocked Damage (Ranged): 9
  • Kraken Shell icon.png
    Proc Chance: 100%
    Blocked Damage: 12/24/36/48
  • Vanguard icon.png
    Proc Chance: 50%
    Blocked Damage (Melee): 70
    Blocked Damage (Ranged): 35

Version history[edit]

Version
Description
  • Damage block no longer affects physical spells.
    • The following abilities no longer have their damage reduced by damage block:
    Counter Helix, Eye of the Storm, Anchor Smash, Slithereen Crush, Lua error in Module:Ability_ID at line 44: Could not find Cargo data for "Unstable Concoction"., Shadow Wave, Entangling Claws, Return, Echo Stomp, Lua error in Module:Ability_ID at line 44: Could not find Cargo data for "Land Mines". and Lua error in Module:Ability_ID at line 44: Could not find Cargo data for "Suicide Squad, Attack!"..
    • The following are abilities that were previously getting reduced twice as part of the attack instead of just once:
    Shadow Walk, Vendetta and Meld.
    • As an example reference, here are some of the abilities that were already ignored by damage block before:
    Wild Axes, Exorcism, Lua error in Module:Ability_ID at line 44: Could not find Cargo data for "Acid Spray"., Poison Touch, Diabolic Edict and Quill Spray.

See also[edit]