Cast range

“

▶️ No sorcery lies beyond my grasp. — Rubick

”

Cast range ( $c$ ) is the distance at which a hero may use an ability on its target. Casting an ability beyond its cast range will cause the hero to move within the cast range, and cast the ability.

Cast range can be increased by certain abilities and certain specific talents. There are currently no talents that increases a heroes' basic cast range.

Collision Size Bonus Range

An ability's maximum or actual cast range is dependent on the hero's collision size and the ability's targeting type.

No Target

Abilities with no target requirement are immediately cast as soon as its button is pressed. Many of these abilities do not have a cast time. However, they do not have an instant cast time. They cannot directly target a unit or a point. Same goes for abilities that can be toggled On / Off. Therefore, only flat cast range bonuses are counted and collision size is not.

The cast range for no-target abilities is defined as:

$c = c_b + \sum_{i=1}^n c_i$

With cb being the ability's base cast range and ci the cast range bonus sources.

Vector Targeting

Cast range bonuses increases all vector targeting ability's cast range as usual, using the same formula as above, but not area of effect.

Target Area

See also: Area of Effect Increasing

Cast range bonuses increases all area-targeted ability's cast range as usual, using the same formula as above, but not area of effect.

Target Unit

See also: Attack Range

Target unit abilities require the caster to directly target a unit, and cannot be used on the ground. The actual range at which a unit-targeted ability (or attack) is able to cast is a little further than the value shown due to having a motion buffer range, which is 250 range. This means that if a unit moves out of cast range, but is still within 250 range more than the ability's cast range when the ability's cast point completes, the unit-targeted ability will be cast.

Unit targeted abilities also considers the range from the caster's edge to the target's edge, based on the collision size of the caster and the target.

The cast range for unit-targeted abilities is defined as:

$max\{c\} = c_b + \sum_{i=1}^n c_i + {col}_{s} + {col}_{t} + 250$

With cb being the ability's base cast range, ci the cast range bonus sources, cols the collision size of the caster and colt the collision size of the target.

Motion Buffer

When the cast range between the caster and the target exceeds the default cast range during the cast animation, the motion buffer range allows the ability to be still cast. For most unit-targeted abilities, the default motion range buffer is 250. In other words, for unit-targeted abilities, the target has to move at least 251 range away in order for the ability to be canceled.

If the targeted unit is out of the motion buffer range, the ability will be cast once the target and the caster move within the default range.

There are a few conditions that allow the ability to have a different motion range buffer than the default 250 range:

• When the ability's cast point is not 0.
• Upon finishing the ability's cast animation, and while the affected target(s) are within the default motion range buffer, the ability will be cast successfully.
• Sources with different motion buffer range from the default value, as listed below.
• When the ability's cast point is 0, the ability does not have a cast range buffer.

Abilities with Different Motion Buffer Range

• Sniper - Assassinate
  
  Motion Buffer Range: 600
  
• Spirit Breaker - Nether Strike
  
  Motion Buffer Range: 500
  

Example

Luna casting Lucent Beam on an enemy Abaddon, what is the maximum cast range of Lucent Beam in this example?

Cast range values:

• Lucent Beam: 800

Collision size values:

• Luna: 27
• Abaddon: 27

$max\{c\} = 800 + \underbrace{ (27 + 27 ) }_\text{Collision Size} + \underbrace{(250)}_\text{Buffer} = 1104$

Lucent Beam's actual cast range in this example is 1104, instead of 800.

Target Point

Point-target abilities require the caster to target a point or an area. For point-targeted abilities, both flat cast range bonuses and the range from the caster's edge to the target's edge, based on the collision size of the caster and the target is considered, but not the motion buffer range.

The cast range for point-targeted abilities is defined as:

$max\{c\} = c_b + \sum_{i=1}^n c_i + {col}_{s}$

Example

Morphling is casting Waveform, what is the maximum cast range for Waveform?

Cast range values:

• Level 4 Waveform: 1000

Collision size values:

• Morphling:

Failed to parse (syntax error): {\displaystyle max\{c\} = 1000 + <strong class="error"><span class="scribunto-error" id="mw-scribunto-error-1">Lua error in Module:Show at line 24: attempt to index field &#039;?&#039; (a nil value).</span></strong> = <strong class="error">Expression error: Unexpected &lt; operator.</strong>}

Waveform has a maximum cast range in this example.

Other Cast Range Bonuses

Some abilities have different cast range or provides cast range bonus in specific conditions.

Other Cast Range Bonuses

• Dragon Knight - Elder Dragon Form
  
  Dragon Tail Cast Range Bonus: 300
  Fireball Cast Range Bonus: 800
  While in Dragon Form, Dragon Tail and Fireball has 450 and 1400 cast range respectively.
• Earth Spirit - Boulder Smash
  
  Unit Cast Range: 150
  Stone Cast Range: 180
  Stone Knockback Distance:
  Has 150 cast range when smashing a unit. Has a cast range equal to the stone knockback distance when smashing a Stone Remnant within a 180 radius, or 180 when targeting a Stone Remnant further away.
• Earth Spirit - Enchant Remnant
  
  Cast Range (Ally/Self): 175
  Cast Range (Enemy): 500
  
• Nyx Assassin - Impale
  

  
  Cast Range: 750 ( 1275)
  Spikes Travel Distance: 750 ( 1275)
  Increases cast range and travel distance while Burrowed.
• Nyx Assassin - Mind Flare
  

  
  Cast Range: 800 ( 1200)
  Increases cast range while Burrowed.
• Force Staff - Force
  
  Cast Range (Ally/Self): 550
  Cast Range (Enemy): 850
  
• Hurricane Pike - Hurricane Thrust
  
  Cast Range (Ally/Self): 650
  Cast Range (Enemy): 450
  Push Distance (Ally/Self): 600
  Push Distance (Enemy): 450
  

Cast Range Granting Abilities

For a list of special interactions with cast range increases, see Cast Range Interactions.

Bonuses

Cast Range Bonus Sources

• Keeper of the Light - Spirit Form
  
  Bonus Cast Range: 125/250/375
  
• Rubick - Arcane Supremacy
  
  Bonus Cast Range: 60/120/180/240
  Passive.
• Aether Lens - Aethereal Focus
  
  Bonus Cast Range: 225
  Cast range bonus does not stack with Aether Lens-based items.
• Ethereal Blade
  
  Bonus Cast Range: 250
  Cast range bonus does not stack with Aether Lens-based items.
• Keen Optic
  
  Bonus Cast Range:
  Passive.
• Seer Stone
  
  Bonus Cast Range: 350
  Passive.
• Psychic Headband
  
  Bonus Cast Range: 100
  Passive.
• Telescope - Prescient Aura
  
  Bonus Cast Range: 125
  Radius: 1200
  The effects is provided by an aura, affects self and nearby allies. The buff lingers for 0.5 seconds.

Talents

Cast Range

Ability
Passive

Affects
Self

There is no description for this ability.

Cast Range Bonus: Varies

• Increases the hero's cast range.

• The following values exist:
  • 50/60/75/100/125/150/175/200/225/250/275/300/325/350/400

No hero has this talent.

Besides these, the following heroes have talents that increase the cast range of specific abilities:

Specific Cast Range Increasing Talents

• No results - Talent by Level 10 Right
  
  +175 Flux Cast Range:
  
• No results - Talent by Level 20 Right
  
  +425 Rupture Cast Range:
  
• Earthshaker - Talent by Level 20 Left
  
  +50% Enchant Totem Damage:
  
• No results - Talent by Level 20 Right
  
  +1000 Stroke of Fate Cast Range:
  
• Monkey King - Talent by Level 15 Right
  
  +450 Tree Dance Cast Range:
  
• No results - Talent by Level 10 Left
  
  +250 Waveform Range:
  
• No results - Talent by Level 25 Left
  
  +1000 Icarus Dive Cast Range:
  
• Timbersaw - Talent by Level 25 Left
  
  +1125 Timber Chain Range:
  

Reductions

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

Cast Range Reduction Sources

• Bane – Enfeeble
• Tinker – Warp Flare

Patch History

Patch

Description

01 Oct 2022

• Fixed certain abilities' preview (on Mouse hover) not interacting correctly with cast range bonuses (e.g. Arcane Supremacy).

08 Aug 2019

• Hovering over a unit's portrait now displays a range finder for their current vision range.
• Ability ranges are now shown when hovering over enemy hero abilities (shows the values for the max level ranges).
• Fixed some cases where the cast range range-finder wouldn't match the actual cast range (i.e. Earth Spike).

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