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Gyrocopter icon.png
Strength attribute symbol.png
Agility attribute symbol.png
Intelligence attribute symbol.png
18 + 2.1
24 + 2.8
19 + 2.1
Level 0 1 15 25 30
Health 200 560 1140 1560 1760
Health regen 0 1.8 4.74 6.84 7.89
Mana 75 303 651 903 1023
Mana regen 0.01 0.96 2.43 3.48 4.01
Armor 1 5 11.53 16.2 18.53
Att/sec 0.59 0.73 0.96 1.12 1.21
Damage 13‒23 37‒47 76‒86 104‒114 118‒128
Magic resistance 25%
▶️ Movement speed 325
▶️ Attack speed 100
Turn rate 0.6
Vision range 1100/800
Attack range 365
Projectile speed 3000
Attack animation 0.2+0.97
Base attack time 1.7
Damage block 0
Collision size 24
Legs 2

Hero stats changes: Day vision range reduced from 1800 to 1100. No other changes.


Rocket Barrage
Rocket Barrage icon.png
No Target
Launches a salvo of rockets at nearby enemy units in a radius around the Gyrocopter. Lasts 3 seconds.
Cast Animation: 0+0
Search Radius: 400
Rockets per Second: 10
Damage per Rocket: 10/16/22/28
Barrage Duration: 3
Cooldown: 7/6.5/6/5.5 (With talent: 5.6/5.2/4.8/4.4)
Mana: 90
Buff Rocket Barrage: Dispellable with any dispel.
Aurel's new craft has an increased payload for rockets, enhancing their rapid-fire capabilities.


  • Modified values:
  • Damage per rocket: 7/12/17/22 -> 10/16/22/28
  • Despite the visual effects, the damage is dealt instantly, rather than on each rocket's impact.
  • Gyrocopter can act freely during Rocket Barrage.
  • Does not fire rockets while Gyrocopter is hidden.
  • Deals damage in 0.1 second intervals, resulting in 30 damage instances.
  • Can deal a total of 300/480/660/840 damage (before reductions), assuming all rockets hit.
Homing Missile
Gyrocopter Homing Missile model.png
Unknown Unit icon.png
Level 2
Duration Permanent
Health 100
Health regeneration 0
Armor 0
Magic resistance 0%
Vision range 400 (G)
Bounty 20‒30
Experience 20
Notes Uncontrollable

Homing Missile
Homing Missile icon.png
Fires a homing missile to seek the targeted enemy unit. The missile gains speed over time, dealing damage and stunning when it impacts the target. Homing Missile deals greater damage the further it has traveled. Enemy units can destroy the missile before it reaches its target.
Cast Animation: 0.3+0.5
Cast Range: 1050
Hero Attacks to Destroy: 3/3/4/5
Tower Attacks to Destroy: 6/6/8/10
Minimum Damage: 50
Maximum Damage: 125/250/375/500
Stun Duration: 2.25/2.5/2.75/3
Number of Charges: 0 (Talent 3)
Charge Replenish Time: 0 (Talent 20/17/14/11)
Cooldown: 20/17/14/11 (With talent: 0)
Mana: 120/130/140/150
Blocked by Linken's Sphere. Blocked upon impact.
Debuff Stunned: Dispellable with strong dispels.
The biggest missile Aurel could possibly attach to his craft, The Bomb™ has carefully calculated aerodynamics and explosives for maximum impact.


  • Modified values: None.
  • When Cast, a stationary missile is placed 150 range in front of Gyrocopter, which begins to move 2.5 seconds later.
  • Homing Missile's initial speed is 340 and increases by 20 per second, growing by 1 every 0.05 seconds.
    • Though the damage is capped, the speed is not, and continues to increase until it hits the target or is destroyed.
  • Only attacks from heroes, illusions (counting as heroes), towers and the fountains (counting as towers) can damage the missile.
  • The crosshair over the target is visible to allies only.
  • Although the spell grants no vision over the target, the missile follows and hits invisible units.
  • If the missile hits its target, its 400 range flying vision stays at the location for 3.5 seconds.
  • The missile's damage is based on the distance between the rocket's starting position and the target upon impact.
    • To deal more than the minimum damage, the missile has to hit its target at least 601/301/201/151 range away from its starting position.
  • This is how much damage the Homing Missile deals (before reductions) at certain distances:
    • 300 Distance: 50/50/75/100 damage
    • 600 Distance: 50/100/150/200 damage
    • 900 Distance: 75/150/225/300 damage
    • 1200 Distance: 100/200/300/400 damage
    • 1500 Distance: 125/250/375/500 damage
    • The damage is capped at 1500 distance.
  • The missile can be targeted by Force Staff icon.png Force Staff and Hurricane Pike icon.png Hurricane Pike, pushing the rocket forwards (or backwards).
    • The missile cannot impact the target during the forced movement, and passes through, reorients, and continues to chase the target.
  • When the missile gets affected by Chronosphere it gets instantly destroyed.
  • When choosing the cooldown reducing talent, its cooldown (Talent recharge time) is 16/13.6/11.2/8.8, considering no other sources of reductions.

Flak Cannon
Flak Cannon icon.png
No Target
Gyrocopter's attacks hit all enemy units in an area around it for a limited number of attacks. Only the main target of attacks will receive attack bonuses such as Critical Strike. Lasts 15 seconds or until the attacks are used.
Cast Animation: 0+0
Search Radius: 1250
Number of Attacks: 3/4/5/6 (Talent 7/8/9/10)
Duration: 15
Cooldown: 30 (With talent: 24)
Mana: 50
Buff Flak Cannon: Dispellable with death only.
This newly revamped Gyrocopter has attached enough armaments to assault in a 360 degree radius.


  • Modified values: None.
  • Flak Cannon interrupts Gyrocopter's channeling spells upon cast.
  • Causes Gyrocopter to perform instant attacks on all nearby enemies whenever he launches an attack projectile.
    • This means all projectiles are released at the same time together with the main attack.
    • Therefore, it does not matter whether the primary attack misses or not, the flaks are still released.
    • The flaks have no count limit. All valid nearby targets get attacked.
    • Flaks are not launched when the Side Gunner attacks.
  • The primary attack target is not affected by Flak Cannon. It is only hit by the primary attack.
  • The projectiles from the instant attacks travel at a speed of 800, and can be disjointed like regular attacks.
  • Unlike most other instant attacks, the ones from Flak Cannon may not proc any attack modifiers or on-hit effects.
  • Does not target couriers, wards, buildings, invisible units, or units inside the Fog of War.
    • However, attacking couriers, wards, buildings, or allied units still causes flaks to hit all valid targets within the radius.
  • The number of attacks left is visible (to everyone) on the buff icon.

Call Down
Call Down icon.png
Call down an aerial missile strike on enemy units in a target area. Two missiles arrive in succession, the first dealing major damage and minor slow for 2 seconds; the second dealing minor damage and major slow for 4 seconds.
Cast Animation: 0.3+0.5
Cast Range: 1000
Effect Radius: 600
Missile One Damage: 200/275/350
Missile Two Damage: 100/150/200
Missile One Move Speed Slow: 30%
Missile Two Move Speed Slow: 60%
Missile One Slow Duration: 2
Missile Two Slow Duration: 4
Cooldown: 55/50/45 (With talent: 44/40/36)
Mana: 125
Aghanim's upgrade: Adds a Side Gunner that at random attacks enemy units within a 600 radius every 1.1 seconds.
Does not pierce spell immunity. Slow persists if debuff was placed before spell immunity and when not dispelled.
Debuff Call Down Slow: Dispellable with any dispel.
'Bombs away!'


  • Modified values: None.
  • The first missile impacts 2 seconds and the second missile 4 seconds after cast.
  • Provides 300 radius flying vision at the targeted area for 4 seconds upon cast.
  • Can deal a total of 300/425/550 damage (before reductions), assuming both missiles hit.
  • The big red area indicator is visible to allies only, but the sound effects are audible and the missiles visible to everyone.

Side Gunner
Cannot be used by illusions. Disabled by Break. Pierces spell immunity.
Unknown icon.png
A Side Gunner that at random attacks enemy units within a 600 radius every 1.1 seconds.
Attack Range: 600
Attack Interval: 1.1


  • Modified values: None.
  • Requires Aghanim's Scepter icon.png Aghanim's Scepter in the active inventory, or an Aghanim's Scepter Synth buff to be unlocked.
  • The Side Gunner is not bound to any of Gyrocopter's spells and is not visible in the HUD. However, its values are in Call Down's description.
  • The Side Gunner performs an instant attack in the set interval. Its target is chosen completely randomly.
    • Since it uses instant attacks, it neither interferes with the regular attacks, nor does it use animations. It also ignores disarms.
    • It does not interfere with any other actions of Gyrocopter either. It still attacks while e.g. stunned or while channeling.
    • The gunner can proc any attack modifier or any on-hit effect like a regular attack, except for Flak Cannon.
    • The gunner can miss to evasion or if Gyrocopter is blinded, unless he has True Strike.
  • The Side Gunner uses the same 3000 projectile speed as Gyrocopter's attack.
  • The Side Gunner does not attack when Gyrocopter is hidden, invisible or affected by Break.
    • However, the gunner ignores fade times and fade delays of spells. It only does not attack when fully invisible.
  • The Side Gunner does not attack wards and couriers, but does attack buildings. Only attacks units Gyrocopter has vision over.
  • Side Gunner attack speed and range are not affected by anything.


Hero Talents
+4 Flak Cannon Attacks253 Homing Missile Charges
20% Cooldown Reduction20+35 Movement Speed
+30 Damage15+15% Magic Resistance
+225 Health10+6% Spell Amplification
  • Replaced talents: None.
  • Upgrading health increases maximum health capacity and keeps the current health percentage.
  • The magic resistance stacks multiplicatively with other sources of magic resistance.
  • The attack damage is added as bonus attack damage, and therefore does not benefit illusions.
  • Cooldown reduction affects abilities and items. Stacks multiplicatively with Octarine Core icon.png Octarine Core and additively with Arcane Rune minimap icon.png Arcane Rune.
  • The health talent increases maximum health capacity, and keeps the current health percentage.
  • This attack damage talent is added as raw attack damage, so it does not benefit illusions, and is not affected by most percentage-based damage increasing or reducing effects.
  • The magic resistance talent stacks multiplicatively with other sources of magic resistance.
  • The magic resistance talent increases Siltbreaker's magic resistance to 36.25%.

Patch history[edit]

  • Added to Siltbreaker.