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HeavyBarrel1.png [Active] Draw out the [Hand Cannon] and fire a huge energy mass. The energy mass will fly and explode at a certain distance.
Pressing the skill key will give additonal energy charge while in Super Armor State. Use the up/down arrow to adjust where to fire. Depending on energy charge, damage and size will increase.
Weapon Switch
  • Switches to [Hand Cannon] immediately upon cast.
ECP Using Skill
  • Consumes ECP instead of MP.
  • Upon activating Over Strike, skill cannot be used.
Final Enhanced Skill
  • Damage is increased by 1.2 times.


Class Level Required
Heavy Barrel 15

Skill Information


Level Required Damage (Physical) Charged ECP Usage Cooldown
Weapon Hit Air Bullet Explosion Damage Increase Size Increase Duration
15 161% 342% 851% +50% 1.5 Seconds 35 ECP 7 Seconds
[Enhanced] 193% 410% 1021%


Level Required Damage (Physical)
Weapon Hit Air Bullet Explosion
15 61% 129% 324%
[Enhanced] 73% 155% 389%

Skill Traits

Empowered Cannonball Haste Cannonball
Attribute Effect Attribute Effect Cooldown
Damage increased to 120% Cooldown decreased to 80% 5.6 Seconds

Total Damage

Mode Regular
Normal Empowered
PvE 2,234.93% 2,793.66%
PvP 876.49% 1,060.28%
  • Assuming the current bug and fully charged.

Related Skills

HeavyBarrel9.png Miracle Vision StormTrooper3.png Shear Plate StormTrooper9.png Heavy Weapon Mastery

Tips and Details

  • Currently bugged, Air Shot and Explosion damage are increased by 1.08 times and 1.09 times instead of 1.2 times.
  • There is no actual charging time required to aim the skill up or down. Simply holding up or down while activating the skill is enough
    • Aiming the skill is useful when fighting enemies on slopes, as the trajectory is about 30 degrees up/down.
  • The Air Bullet counts as a projectile and can be absorbed.
  • When using this skill off a ledge, Rose will stay in the charging animation and slowly descend vertically downwards.


  • The skill is based on DFO's Female Launcher skill Cannon Ball.


Date Changes
01/07/2016 -
  • Cannonball explodes upon impact.
04/21/2016 -
  • Casting Speed increased.
  • Damage increase after charged.
07/28/2016 -
  • Tooltip error fixed.
01/12/2017 -
  • Damage decreased.
04/27/2017 -
  • Air Bullet damage increased.
  • Explosion damage increased.
  • Damage decreased.
04/05/2018 04/18/2018
  • Air Bullet damage increased.
  • Explosion damage increased.
  • Weapon Hit damage decreased.
08/14/2019 08/28/2019
  • ECP Usage increased.
  • Weapon Hit damage increased.

Alternative Names

Server Name Translation
Korean Flag.png South Korea 캐넌볼 Cannonball
Chinese Flag.png China (Simplified Chinese) 加农炮 Cannonball
French Flag.png France Boulet de canon Cannonball
Bresil Flag.png Brazil Bala de Canhão Cannonball

Heavy Barrel Skills
Special Active
HeavyBarrel2.png Flame Strike       HeavyBarrel5.png Lock-on Stratos     HeavyBarrel6.png FM-31 Grenade Launcher     HeavyBarrel7.png Laser Rifle     HeavyBarrel8.png Quantum Bomb
HeavyBarrel1.png Cannonball     HeavyBarrel4.png Steyr Antitank
HeavyBarrel9.png Miracle Vision
HeavyBarrel3.png Over Strike Enhance