Heavy Weapon Mastery UI
[Passive]
Each time a Special Active skill is used, you gain a buff that increases Active/Special Active skills attack power for a certain duration.
When the buff wears off, stacks are decreased one by one. (Max of 5 stacks)


Requirements

Class Level Required
Storm Trooper 60


Skill Information

Skill Level Level Required   Self BuffHeavy Weapon Mastery
(Upon Special Active Skill Use)
All Skill Damage Increase
This effect is multiplicative
to your current stats. 
M
Max Stacks Duration per Stack
PvE
1 60 3% 5 15 Seconds
2 66 4%
3 68 5%
4 99 6%
PvP
1 60 1.5% 5 15 Seconds
2 66 2%
3 68 2.5%
4 99 3%


Related Skills


Tips and Details

  • As the effect declines 1 stack at a time, the effective duration of 5 stacks is 75 seconds until you no longer have the buff at all.
  • The buff duration starts going down as soon as your last Special Active's animation ends. For skills that can be extended, such as M-3 Flamethrower, it will start going down as soon as you release the skill button.


Trivia


Updates

Date Changes
KR NA PvE PvP
12/31/2015 06/15/2016
  • Heavy Weapon Mastery added.
01/21/2016 -
  • Fixed issue where All Skill Damage Increase effects were getting stacked.
02/04/2016 03/16/2016
  • Duration increased.
04/27/2017 05/10/2017
  • All Skill Damage Increase decreased.
  • Duration decreased.
08/23/2018 09/06/2018
  • All Skill Damage Increase increased.
09/20/2018 10/11/2018
  • Duration increased.
06/22/2023 07/19/2023
  • None
  • All Skill Damage Increase decreased.


Alternative Names

Server Name Translation
  South Korea 중화기 마스터리 Heavy Arms Mastery
  China (Simplified Chinese) 重火器精通 Heavy Arms Mastery
  France Championnat d'armes lourdes Heavy Weapon Championship
  Brazil Maestria em Armas Pesadas Heavy Arms Mastery