From Lineage 2 Encyclopaedia

Properties

Polearm Mastery
Increases P. Atk. by 4.5 when using a polearm, and allows an attack on multiple targets.
Class	Scavenger
Type	passive
Attribute	-
Recast time	0 s
Cast time	0 s
Cast range	0
Classes with same skill	Warrior, Gladiator, Warlord, Raider, Destroyer, Scavenger, Bounty Hunter, Artisan, Warsmith, Duelist, Dreadnought, Titan, Fortune Seeker, Maestro

Skill Upgrade

Lvl. to Learn	Skill Lvl.	Description	MP Consume	HP Consume	SP
20	1	Increases P. Atk. by 4.5 when using a polearm, and allows an attack on multiple targets.	0	0	4
24	2	Increases P. Atk. by 7.3 when using a polearm, and allows an attack on multiple targets.	0	0	6
28	3	Increases P. Atk. by 8.9 when using a polearm, and allows an attack on multiple targets.	0	0	7
28	4	Increases P. Atk. by 10.7 when using a polearm, and allows an attack on multiple targets.	0	0	7
32	5	Increases P. Atk. by 12.8 when using a polearm, and allows an attack on multiple targets.	0	0	10
32	6	Increases P. Atk. by 15.1 when using a polearm, and allows an attack on multiple targets.	0	0	10
36	7	Increases P. Atk. by 17.7 when using a polearm, and allows an attack on multiple targets.	0	0	13
36	8	Increases P. Atk. by 20.5 when using a polearm, and allows an attack on multiple targets.	0	0	13