Energetic Heart

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BSSActive2.png [Special Active: Tenacity] Runs a powerful amount of energy through the core to release energy.
Create Fusion Field
  • Activates Amplify/Spectrum/Reactive Force Fields at the same time.
Final Enhanced Skill
  • Boost limit removed. Additional boosts cost 8 MP.


Class Level Required
Code: Battle Seraph 55

Skill Information


Level Required Energetic Heart MP Usage Cooldown
DRU.pngZ.pngConX.png Extra Boost Duration
Number MP Usage
55 +3 5 MP 30 Seconds 100 MP 15 Seconds
[Enhanced] Infinite 8 MP


Level Required Energetic Heart
55 15 Seconds

Fusion Mode Information

Beam / Electron Damage Max Hits
x0.25 Varies per skill

Skill Traits


Reversed Energetic Heart Killing Blow (1) Energetic Heart
Attribute Effect MP Usage Cooldown Attribute Effect Energetic Heart Duration
MP Usage decreased to 50%
Cooldown increased to 150%
50 MP 22.5 Seconds Skill effect's duration increased to 120% 36 Seconds


Killing Blow (1) Energetic Heart
Energetic Heart Duration
18 Seconds

Related Skills

CSPassive2.png Evolution

Tips and Details

  • Fusion mode essentially combines the effects of all other fields, with the exception of Amplify mode.
    • All beams, electron balls / triangles and electric spears will split into 3 just like Spectrum mode.
    • All beams, electron balls / triangles and electric spears will gain the same properties provided by Reactive mode, such as homing and piercing. See Ultra Optical Investigation for more info on how certain skills react.
  • The total hit count of most skills will increase by roughly 6 times, though this varies for certain skills.
  • Functionally similar to Queen's Throne, activating her core to produce wings that provide additional movement while enhancing herself in various ways.
  • If El Crystal Spectrum is used while the buff is active, the buff will be removed.


Electronic "wings"
  • When this skill is active, Eve will grow electronic "wings".
  • There is a glitch where the wings stay upon her, but fusion mode is lost, and El Crystal Spectrum change interval is changed from 0.5 to 0 and becomes spammable.
  • Energetic Heart is the only skill that can be identified by Heroic Equipment that cannot deal any damage.


Date Changes
08/30/2012 09/04/2013
  • Energetic Heart added.
07/04/2013 -
  • Cooldown time increased.
02/05/2015 -
  • Number of Extra Boost decreased.
  • Duration decreased.
01/14/2016 -
  • Fixed Energetic Heart effect lasting infinitely in certain cases.
06/30/2016 -
  • Duration increased.
08/11/2016 -
  • Fixed issue where X.png cannot recover MP.
11/16/2016 -
  • Tooltip error fixed.
07/27/2017 -
  • Freeze Frames decreased.
  • Cooldown increased.
  • Duration increased.
  • Duration decreased.
01/17/2019 02/20/2019
  • Able to move after skill earlier.
06/20/2019 07/17/2019
  • Cooldown decreased.
  • Can cancel Energetic Heart buff by using El Crystal Spectrum.
    • No longer used Fusion2.png icon.
07/18/2019 -
  • Fixed homing not working properly in certain situations.

Alternative Names

Server Name Translation
Korean Flag.png South Korea 에너제틱 하트 Energetic Heart
Japanese Flag.png Japan エナジェティックハート Energetic Heart
Chinese Flag.png China (Simplified Chinese) 充能核心 Charge Core
German Flag.png Germany Starkes Herz Strong Heart
Spanish Flag.png Spain Corazón fuerte Strong Heart
French Flag.png France Cœur cybernétique Cybernetic Heart
Italian Flag.png Italy Cuore forte Strong Heart
Polish Flag.png Poland Silne Serce Strong Heart
English Flag.png United Kingdom Strong Heart
Bresil Flag.png Brazil Coração de Energia Energetic Heart

Code: Battle Seraph Skills
Hyper Active
PAEM.png Psychic Artillery
Special Active
Linear Divider.png Linear Divider     BSActive1.png Taser Pilum     BSSActive1.png Energy Needles     ThousandsofStars.png Thousand Star     PhotonTracker.png Photon Tracker     BSSActive2.png Energetic Heart
Tesla Shock.png Tesla Shock : Spear
HOR.png Ultra Optical Investigation     HPE.png High-power Electronic Circuit     AdvancedElEnergyReactor.png El Energy Reactor