Extreme Rune Buster

From Elwiki
RSTrans6.png [Special Active: Bravery] Strike the ground using a sword filled with mana and cause chain explosion with flame, ice and poison runes.
Destruction Skill
  • Consumes Destruction gauge and acquire Vitality gauge
  • Attack Power ↑ when Destruction is activated
Final Enhanced Skill
  • Damage is increased by 1.2 times.


Class Level Required
Rune Slayer : Transcendent 95

Skill Information[edit]

Mode Damage (Magical) Max Hits
Status 071.png
BurnEnemy Debuff
Status 094.png
Extreme ColdnessEnemy Debuff
Status 076.png
PoisonEnemy Debuff
MP Usage Cooldown
Sword Aura Shockwave Rune Explosion Sword Aura Shockwave Rune Explosion
Hits per Rune Rune Count
PvE 481% 360% 438% 3 8 3 7 5 Seconds 300 MP 23 Seconds
PvP 164% 123% 149%
PvE 577% 432% 525% 3 8 3 7 5 Seconds 300 MP 23 Seconds
PvP 197% 148% 180%

Skill Traits[edit]

Heavy Extreme Rune Buster Light Extreme Rune Buster
Attribute Effect Cooldown Attribute Effect MP Usage
Damage increased to 144%
Cooldown increased to 120%
27.6 Seconds MP Usage decreased to 80% 240 MP

Total Damage[edit]

Mode Base
Normal Destruction
Normal Heavy Normal Heavy
PvE 16,212% 23,345.28% 24,318% 35,017.92%
PvP 5,555% 7,999.2% 6,943.75% 9,999%

Related Skills[edit]

Tips and Details[edit]

  • It is possible to land 3 runes (9 Rune Explosion hits) on most enemies with some good positioning, especially on enemies at a higher elevation than you as the runes are summoned a decent amount above the ground.
  • The Sword Aura hitbox will follow with you should you fall off of a platform during the skill cast, while the shockwave will appear at the height you were when Elsword completes his swing forward.
    • The runes will appear a little bit after the shockwave, so when falling off of a platform they will often appear much lower than where the shockwave is at.
  • The Sword Aura only deals damage after it hits the ground, and as such will only deal its damage to enemies relatively close by.


  • This is the only Rune Slayer skill to use a Sword Aura. The blade is slightly larger than Infinity Sword's Phantom Sword and resembles a Luna Blade in appearance. It can not be controlled after the skill.
    • Additionally, the release of this skill means all of Elsword's and Elesis's classes now have an Aura they can call upon, although Rune Slayer and Crimson Avenger cannot control theirs after the skills that summon them.
  • This is the only instance of Poison Runes being utilized.

Old Version[edit]

Video Description
Between its initial release and the 09/11/2019 KR Patch, Extreme Rune Buster would launch targets into the air into a field of rune explosions.


Date Changes
11/03/2016 11/23/2016
  • Extreme Rune Buster added.
  • Sword Aura damage increased.
  • Shockwave damage decreased.
  • Rune Explosion damage decreased.
01/25/2017 02/08/2017
  • Rune Explosion damage increased.
  • Sword Aura damage decreased.
  • Shockwave damage decreased.
04/27/2017 05/10/2017
  • Damage increased.
  • Shockwave damage increased.
07/27/2017 08/09/2017
  • Rune Explosion damage increased.
  • Rune Explosion damage increased.
  • Sword Aura damage decreased.
  • Shockwave damage decreased.
09/28/2017 10/18/2017
  • None
  • Damage decreased.
04/05/2018 04/18/2018
  • Shockwave damage increased.
  • Sword Aura damage decreased.
  • Rune Explosion damage decreased.
  • Damage increased.
09/11/2019 09/25/2019
  • Enhanced trait changed to Heavy.
  • No longer launches targets.
  • Rune Explosion placement changed.
07/02/2020 07/29/2020
  • Sword Aura damage increased.
    • Sword Aura hitbox adjusted (Unlisted)
  • Shockwave damage decreased.
  • Rune Explosion damage decreased.

Alternative Names[edit]

Server Name Translation
Korean Flag.png South Korea 익스트림 룬 버스터 Extreme Rune Buster
Japanese Flag.png Japan エクストリームルーンバスター Extreme Rune Buster
Chinese Flag.png China (Simplified Chinese) 极限符文爆裂 Extreme Rune Buster
German Flag.png Germany Extrem-Runen Extreme Runes
Spanish Flag.png Spain Runas extremas Extreme Runes
French Flag.png France Runes extrêmes Extreme Runes
Italian Flag.png Italy Rune estreme Extreme Runes
Polish Flag.png Poland Ekstremalne Runy Extreme Runes
English Flag.png United Kingdom Extreme Runes
Bresil Flag.png Brazil Destruição Rúnica Extrema Extreme Rune Destruction