From Lineage 2 Encyclopaedia

Properties

Battle Whisper
For 2 minutes, increases P. Atk. by 5%, Critical Damage by 5%, and Atk. Spd. by 5%. Increases the additional MP Consumption when singing while sing/dance effect lasts.
Class	Swordsinger
Type	buff
Attribute	-
Recast time	3 s
Cast time	2.5 s
Cast range	0
Classes with same skill	Swordsinger, Sword Muse

Skill Upgrade

Lvl. to Learn	Skill Lvl.	Description	MP Consume	HP Consume	SP
46	1	For 2 minutes, increases P. Atk. by 5%, Critical Damage by 5%, and Atk. Spd. by 5%. Increases the additional MP Consumption when singing while sing/dance effect lasts.	30	0	51
52	2	For 2 minutes, increases P. Atk. by 10%, Critical Damage by 7%, and Atk. Spd. by 7%. Increases the additional MP Consumption when singing while sing/dance effect lasts.	30	0	79
60	3	For 2 minutes, increases P. Atk. by 15%, Critical Damage by 10%, and Atk. Spd. by 10%. Increases the additional MP Consumption when singing while sing/dance effect lasts.	30	0	194