Heavy Railgun

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SI HEAVYRAILGUN.png [Special Active: Strength] Shoot a heavy damage shot forward. The explosion will cause twice as much damage.
Cannonball Consumption
  • Uses 1 cannonball
Final Enhanced Skill
  • MP Usage is decreased by 15%.


Class Level Required
Deadly Chaser 45

Skill Information


Level Required Damage Ammo Usage MP Usage Cooldown
45 2533% 3873% 1 200 MP 15 Seconds
[Enhanced] 170 MP


Level Required Damage
45 916% 1398%

Skill Traits

Critical Heavy Railgun Evil Heavy Railgun
Level Required Attribute Effect MP Usage Attribute Effect
70 MP Usage increased to 120%
Skill will ignore guard and 50% defense (25% defense in PvP)
240 MP Skill will burn 25 MP per hit
[Enhanced] 204 MP

Skill Traits (08/01/2019 KR Patch)

Critical Heavy Railgun Evil Heavy Railgun
Level Required Attribute Effect MP Usage Attribute Effect Cooldown
70 MP Usage increased to 120%
Skill will ignore guard and 50% defense (25% defense in PvP)
240 MP Cooldown decreased to -% ? Seconds
[Enhanced] 204 MP

Total Damage

Mode Regular
PvE 6,406%
PvP 2,314%
  • Does not account for splash damage.

Related Skills

SI INSHOW.png Intense Showtime Gas Piston System.png Gas Piston System
Lock.gifLv60Book.png Camilla's Secret Manual (Expert) is needed to unlock this skill, available through the Expert Training Skill Quest or Item Mall.
FPPhantom Shooter.png Phantom Shooter

Tips and Details

  • Any foes struck by the initial hit will explode and be launched into the air. These secondary explosions damage the target and anything near it, so this skill is most effective against tightly packed groups.
  • The shot does not travel across the entire map, merely about 3/4 of a screen. It also doesn't follow curved paths, making it highly situational.
  • The recoil from the shot will push Chung backwards 100 range.
  • The shell explodes at the end of its range. Hitting with it requires proper spacing; if done correctly, you can get three hits (one shell, two explosions) on a single target.
  • Critical Heavy Railgun can benefit greatly in Secret Dungeons if the player manages to align a cluster of enemies as all the explosions can hit nearby targets, multiplying the skill's damage while also ignoring defense.


Date Changes
07/28/2011 -
  • Reduced ammo consumption, 3 → 1.
  • Damage decreased.
  • Decreased blast radius.
03/29/2012 -
  • Damage increased.
  • Decreased MP consumption, 200 MP → 175 MP.
02/14/2013 -
  • Chung will step back before firing.
06/27/2013 -
  • MP usage changed to 200 MP.
07/10/2014 -
  • Damage increased.
11/06/2014 -
  • Shell damage decreases over time.
08/20/2015 -
04/21/2016 05/18/2016
  • Explosion hitbox size increased.
01/25/2017 -
  • Damage increased.
04/27/2017 -
  • Damage increased.
  • None
04/05/2018 04/18/2018
  • Damage decay removed.
  • [Enhanced] effected changed to decrease MP Usage by 30.
  • Damage increased.
08/01/2019 08/28/2019
  • No longer launches targets.
  • Evil trait changed to Haste.

Alternative Names

Server Name Translation
Korean Flag.png South Korea 헤비 레일건 Heavy Railgun
Japanese Flag.png Japan ヘビーレールガン Heavy Railgun
Chinese Flag.png China (Simplified Chinese) 重型磁轨炮 Heavy Railgun
German Flag.png Germany Schweres Geschütz Heavy Gun
Spanish Flag.png Spain Artillería pesada Heavy Artillery
French Flag.png France Artillerie lourde Heavy Artillery
Italian Flag.png Italy Bocca da Fuoco Fire Bocca
Polish Flag.png Poland Ciężkie Działo Heavy Gun
English Flag.png United Kingdom Heavy Ordinance
Bresil Flag.png Brazil Artilharia Pesada Heavy Artillery

Deadly Chaser Skills
Hyper Active
Outrageous!.png Outrage Strike
Special Active
SI SHOOTINGSTAR.png Shooting Star     RumbleShot(New).png Rumble Shot (KR)     SI HEAVYRAILGUN.png Heavy Railgun     SI COMETCRASHER.png Comet Crasher     SI BULLETBLITZ.png Bullet Blitz
SI RUMBLESHOT.png Rumble Shot (NA)     Rapid Cannon.png Rapid Cannon
SI INSHOW.png Intense Showtime     SI TUSSLETECH.PNG Tussle Technique     Gas Piston System.png Gas Piston System