Attack Range

Definitions
The attack range itself is not what decides if a unit is classified as Ranged or  Melee. This characteristic is set for each unit individually, regardless of their actual attack range. This means that it is possible for a melee unit to have a higher attack range than a ranged unit.

These are the differences between melee and ranged units:
 * Melee heroes attacks hit instantly upon reaching their attack point.
 * Melee attacks miss if the target moves more than 350 range out of the hero's attack range, unless they have True Strike.
 * Melee heroes can attack up cliffs, provided the enemy is close enough to the edge to be within the hero's range.
 * Melee attackers have an extra 150 attack range when attacking.
 * Melee heroes have an innate ability, having a  chance to block  damage.
 * Certain items uses different values for melee heroes, such as, and etc.
 * Melee heroes can use cleave.
 * movement speed slow and attack speed slow apply the lesser values against melee heroes.
 * The attack range bonus from and  work exclusively for melee heroes.


 * Ranged heroes fire a projectile when they attack.
 * The time it takes for a ranged projectile to land is determined by the hero's projectile speed and their distance from the target.
 * Projectile attacks can be disjointed, and have a chance to miss when attacking a target on uphill or higher elevation.
 * Certain items uses different values for melee heroes:
 * movement speed slow and attack speed slow use greater values against ranged heroes.
 * Some attack range bonuses apply exclusively to ranged heroes, such as, , and etc.

Some heroes have abilities that allow them to switch between melee form and ranged form, allowing them to benefit from both forms for a timed duration.

Miss Chance
For melee units, if the target is farther than  range more than the melee unit's attack range, the attack will always miss, true strike does not guarantee hits on units outside of the buffer range. For most melee heroes attack buffer range is the sum of the hero's base attack range and range.

For ranged units, they are affected by the uphill miss chance.

Acquisition Range
In order to prevent units from automatically attacking any visible enemy unit, they have a certain acquisition range. This range determines how close an enemy has to get in order for the unit to automatically attack it. Since this only goes for auto attacks, this range has no influence on units which have auto attack set to autoattack/never in the game options.

The default acquisition range is 600 for melee heroes, and 800 for ranged heroes. There are some exceptions to this mainly due to abilities.

Motion Buffer
The default motion buffer range for attack range is, this range prevents attacks (and unit-targeted abilities) from cancelling when the target moves out of attack range during cast time, or before reaching the attack point.

Attack Range Table
Most abilities acquired with which modifies attack range also fully affect 's attack range for their duration when stolen and used, with the exception of  and. See Spell Steal interaction for details.

Set Base Attack Range
These abilities sets the attack range of the caster or affected unit to a value.

Talents
Besides these, the following heroes have other specific attack range talents:

Active Attack Modifiers
All active attack modifier-based abilities' cast range is based on the caster's attack range. The cast range can be further increased by other attack range bonuses of the caster's range type. For example, for  ranged heroes and  for  melee heroes. These active attack modifiers are not affected by cast range bonuses.

Depending on the ability itself, certain abilities use the cast range when cast manually (or when using the designated Hotkey) and use the hero's attack range when set to. This information can be found in the abilities' respective notes.

Reductions
The following abilities reduces the affected target's attack range by a percentage.

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