Brutal Slayer

[Passive]
Burn enemies' MP at a certain chance and decrease cooldown for Special Active skills.

Requirements

Class	Level Required
Infinity Sword	35

Skill Level	Level Required	On Successful Hit with Commands or Skills
Skill Level	Level Required	Activation Chance	MP Burn	Special Active Cooldown Decrease	Reactivation Cooldown
PvE
1	35	5%	10 MP	10 Seconds	7 Seconds
2	51	10%
3	59	15%
4	92	20%
PvP
1	35	5%	10 MP	3 Seconds	7 Seconds
2	51	10%
3	59	15%
4	92	20%

Brutal Slayer is currently the only skill to allow you to burn MP from targets passively.

Date		Changes
KR	NA	PvE	PvP
06/27/2013	11/06/2013	Brutal Slayer added.
02/05/2015	-	▼ Activation Chance decreased. ▼ MP Burn decreased.
04/21/2016	05/18/2016	▲ Activation Chance increased. ▼ MP Burn decreased. Fixed issue where cooldown didn't reduce. Tooltip changed.
11/02/2017	11/15/2017	▲ Activation Chance increased. ▲ Cooldown Reduction increased.
09/20/2018	10/11/2018	▲ Can be activated by any attack. ▲ Cooldown Reduction increased. ▼ Reactivation Cooldown increased.
02/21/2019	-	Fixed 'Main Skill' tooltip in the skill window as Infinity Sword mentioning "normal attacks" instead of "all attacks".
06/20/2019	07/17/2019	▼ Changed so MP Burn cannot be triggered by Hyper Actives.
03/17/2022	04/13/2022	▲ Reactivation Cooldown decreased.
03/17/2022	04/13/2022	▲ Special Active Cooldown Reduction increased.	None

Server	Name	Translation
South Korea	냉혹한 학살자	Brutal Slayer
Japan	吹き荒ぶ力の奔流	Torrent of Raging Power
China (Simplified Chinese)	冷酷杀手	Callous Slayer
Germany	Erbarmungsloser Schlächter	Merciless Butcher
Spain	Carnicero despiadado	Merciless Butcher
France	Impitoyable boucher	Ruthless Butcher
Italy	Sterminatore Spietato	Merciless Butcher
Poland	Bezlitosny Rzeźnik	Merciless Butcher
United Kingdom	Harsh Slayer
Brazil	Retalhador Brutal	Brutal Shredder