Lock-on Stratos

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HeavyBarrel5.png [Special Active: Tenacity] Fires a powerful laser from a satellite in the stratosphere at nearby enemies 3 consecutive times. (Within 900 range)
Skill cannot activated if there are no enemies in range.
Over Strike
  • Upon activating Over Strike, skill attack power increases.
Final Enhanced Skill
  • Attack range is increased by 200%.


Class Level Required
Heavy Barrel 25

Skill Information

Mode Laser (Physical) Max Hits MP Usage Cooldown
PvE 620% 3 100 MP 17 Seconds
PvP 248%

Skill Traits

Persistent Lock-on Stratos Ruthless Lock-on Stratos
Attribute Effect Attribute Effect Cooldown
Skill will reduce 13 KD per hit Skill will cancel Mana Break
Cooldown increased to 200%
34 Seconds

Total Damage

Mode Regular Over Strike
PvE 1,860% 2,232%
PvP 744% 892.8%

Related Skills

HeavyBarrel9.png Miracle Vision StormTrooper3.png Shear Plate StormTrooper9.png Heavy Weapon Mastery StTTrans4.png Awakened Will: Storm Trooper StTTrans5.png Code: War Machine
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.
TBPassive2.png Enhanced Heavy Weaponry



Date Changes
12/31/2015 06/15/2016
  • Lock-on Stratos added.
  • Cooldown decreased.
  • Hitstun increased.
  • "Reversed" attribute effect increased.
  • "Evil" attribute changed to "Ruthless".
01/12/2017 01/24/2017
  • Damage decreased.
04/27/2017 05/10/2017
  • None
  • Damage increased.
08/24/2017 09/13/2017
  • Reversed trait changed to Persistent.
04/05/2018 04/18/2018
  • Damage increased.
06/14/2018 06/27/2018
  • Damage increased.

Alternative Names

Server Name Translation
Korean Flag.png South Korea 락온 스트라토스 Lockon Stratos
Chinese Flag.png China (Simplified Chinese) 卫星射线 Satellite Ray
German Flag.png Germany Strato-Kanone Stratum Cannon
French Flag.png France Canon à strates Stratum Cannon
Bresil Flag.png Brazil Trava Stratos Lockon Straton

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