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.


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.

All melee heroes have innate damage block by default, having a 50% chance to block 16 damage.

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.


Main Article: Item passive stacking

The proc chances of all sources of Damage Block work independently from each other. However, when multiple Damage Block sources proc on the same attack, only one of them actually blocks damage, the one with higher block values getting prioritised, while the others do nothing. This results in a diminishing stacking behavior.

When having two Vanguard icon.png Vanguards, the chance of blocking damage becomes:

1 - (0.5 × 0.5) = 75%

When having one Poor Man's Shield icon.png Poor Man's Shield and one Vanguard icon.png Vanguard, the chance of blocking damage from non-hero attacks becomes:

50% chance for Vanguard to proc, and 50% × 50% = 25% chance for Poor Man's Shield to proc

This is because half of the time Poor Man's 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 Poor Man's Shield procs.

Sources of damage block[edit]

Besides the innate damage block of melee heroes, the following abilities provide Damage Block.

Version history[edit]

  • Melee hero innate damage block
    • Now works against player-controlled units again.
    • Now follows the same stacking rules as other sources of Damage Block, instead of fully stacking with all of them.
    • Reduced proc chance from 100% to 50%.
    • Increased blocked damage from 8 to 16.
  • Melee hero innate damage block no longer works against player-controlled non-hero units.
  • Melee heroes now have a passive innate damage block, blocking 8 damage from every attack.
    • This damage block fully stacks with all other sources of damage block.

See also[edit]