Sparrow Factory

From Elwiki
Language:English • 中文(简体)‎
MHSActive4.png [Special Active: Strength] Summon the [Sparrow Factory], which ejects small interceptors for the duration.
The summoned Sparrow Factory lasts for 15 seconds.
Sparrow Factory
  • Ejects one of 10 sparrow units every 0.4 seconds.
  • The sparrow factory automatically tracks and intercepts the closest target.
  • When the duration ends, the sparrows and factory explode at their current location.
Over Strike
  • Upon activating Over Strike, skill attack power increases.
Final Enhanced Skill
  • Damage is increased by 1.2 times.


Class Level Required Skill Requirement
Metal Heart 30 Intermediate Training Skill Quest

Skill Information


Level Required Damage (Magical) Number of
Max Hits Duration MP Usage Cooldown
Sparrow Shot Sparrow Explosion Sparrow Shot Sparrow Explosion
30 34% 57% 10 1~20 per Sparrow 1 15 Seconds 200 MP 14 Seconds
[Enhanced] 41% 68%


Level Required Damage (Magical)
Sparrow Shot Sparrow Explosion
30 14% 23%
[Enhanced] 17% 28%

Skill Traits

Heavy Sparrow Factory Light Sparrow Factory
Attribute Effect Details Attribute Effect Details
Cooldown MP Usage
Damage increased to 144%
Cooldown increased to 120%
16.8 Seconds MP Usage decreased to 80% 160 MP

Total Damage

Mode Regular Mechanic Mastery
Normal Over Strike Normal Over Strike
Normal Heavy Normal Heavy Normal Heavy Normal Heavy
PvE 5,125% 7,380% 6,150% 8,856% 7,687.5% 11,070% 9,225% 13,284%
PvP 2,125% 3,060% 2,550% 3,672% 3,187.5% 4,590% 3,825% 5,508%
  • Damage values based on the average hit count of 125 hits.

Related Skills

MHPassive.png Mechanic Mastery OptPassive2.png Mecha Generator OptTrans5.png Sub Mech Revolution
Lock.gifForbidden Tome of Secrets II.png Forbidden Secret Manual (II) is needed to unlock this skill, available through the Power of Transcendence Skill Quest or Item Mall.
Prime Operator - Passive 1.png Mecha Control

Tips and Details

  • While the description claims the sparrows deal damage as they explode, this only applies to the factory itself. Enemies take no damage from a sparrow's own explosion, which is purely visual.
  • Due to the dynamic pathing of each of the sparrows, the hit count massively varies between casts, even from the same spot or if summoned directly on top of an enemy so the sparrows start hitting as soon as they possibly can.
    • On average, regardless of where it is summoned, the sparrows will hit about 125 times, though hit counts of nearly 200 are possible.
  • This skill is affected by Sub Mech Revolution, increasing its critical rate significantly and making it ignore guard.
  • The Sparrow Factory counts as a summoned unit for Mecha Generator. The individual Sparrows do not.
  • Only the first hit of each Sparrow will provide hitstun in PvE. In PvP, none of the hits apply any hitstun.
  • The skill can easily attack enemies across the entire map, though it needs at least one enemy nearby for the Sparrows to start tracking in the first place.


Date Changes
03/24/2016 07/27/2016
  • Sparrow Factory added.
04/21/2016 -
  • None
  • Hitstun removed.
01/12/2017 -
  • Damage decreased.
04/27/2017 -
  • Damage increased.
  • None
04/05/2018 04/18/2018
  • Damage decreased.
  • Sparrow Shot damage increased.
  • Sparrow Explosion damage decreased.
06/14/2018 06/27/2018
  • Damage increased.
  • Sparrow Explosion damage increased.
04/25/2019 05/22/2019
  • Summon unit affected by Critical Damage and Physical/Magical Damage Increase effects.

Alternative Names

Server Name Translation
Korean Flag.png South Korea 스패로우 팩토리 Sparrow Factory
Chinese Flag.png China (Simplified Chinese) 拦截机工厂 Interceptor Factory
German Flag.png Germany Speerfabrik Spear Factory
French Flag.png France Usine de javelots Javelin Factory

Metal Heart Skills
Special Active
MHSActive1.png Air Mecha : Gale Force     MHSActive2.png Ez-8 Countdown     MHSActive3.png Ex-S Viper     MHSActive4.png Sparrow Factory     MHSActive5.png Mecha Drop
MHActive1.png KS-83     MHActive2.png Robot Detonation
MHBuff.png Limit Over
MHPassive.png Mechanic Mastery