EX-S Viper

From Elwiki
[Special Active: Tenacity]
Summon the thermal firearm [EX-S Viper] that continuously fires for 7.5 seconds.
Over Strike
  • Upon activating Over Strike, skill attack power increases.
Final Enhanced Skill
  • Fire speed of EX-S Viper increased by 20%.


Class Level Required
Metal Heart 30

Skill Information

Mode Damage (Magical) Max Hits Duration MP Usage Cooldown
Viper Shot Viper Explosion Viper Shot Viper Explosion
PvE 168% 78% 15 1 7.5 Seconds 100 MP 9 Seconds
PvP 64% 30%
PvE 168% 78% 18 1 7.5 Seconds 100 MP 9 Seconds
PvP 64% 30%

Skill Traits

Reversed EX-S ViperHaste EX-S Viper
Attribute EffectMP UsageCooldownAttribute EffectCooldown
MP Usage decreased to 70%
Cooldown increased to 130%
70 MP11.7 SecondsCooldown decreased to 80%7.2 Seconds

Total Damage

Mode Base Mechanic Mastery/Sub Mech Revolution
Normal Over Strike Normal With EX-S-S Viper
Normal Over Strike Normal Over Strike
PvE 3,102% 3,722.4% 4,653% 5,583.6% 6,132% 7,358.4%
PvP 1,182% 1,418.4% 1,477.5% 1,773% 1,947.5% 2,337%

Related Skills

Tips and Details

  • The Viper weapon fires once every 0.5s (every 0.4166...s with [Enhanced]) and inflicts hitstun for its entire duration in PvE.
    • The Viper Shots do not inflict hitstun in PvP, but the Viper Explosion will.
  • The EX-S and additional Ex-SS Viper weapon count as separate summoned units for the Mecha Generator passive.
  • The EX-S-S Viper's firing speed is the same as the parent Viper, but it lacks the [Enhanced] boost.


  • This skill is based on the DFO shared Mechanic skill EX-S Viper, though the DFO skill lacks the ability to summon an Ex-S-S Viper.
  • The firearm is 'operated' by an RX-78 Land Runner.


Date Changes
03/24/2016 07/27/2016
  • EX-S Viper added.
06/30/2016 07/13/2016
  • None
  • Hitstun removed.
01/12/2017 01/24/2017
  • Damage decreased.
04/27/2017 05/10/2017
  • Damage increased.
  • Viper Explosion damage decreased.
04/05/2018 04/18/2018
  • Viper Shot damage increased.
  • Viper Explosion damage decreased.

Alternative Names

Server Name Translation
South Korea Ex-S 바이퍼 Ex-S Viper
Japan Ex-Sバイパー Ex-S Viper
China (Simplified Chinese) Ex-S蝰蛇 Ex-S Viper
France Vipère Ex-S Ex-S Viper