From LSWiki

Class: Combat Skills

Attribute: Perception
Pedagogy: Physical Training

The ability to orchestrate one's attacks in combat so as to cause the most damage, 
not through putting raw force behind them, but by striking at vital and vulnerable 
areas.  Knowledge of anatomy and the skill of finding weakness dovetail exceedingly 
well with this skill.  Your ability to apply this skill is somewhat dependent on the 
weapon you use; cruder and less precise weapons are not well-suited to this technique.  
Generally, piercing weapons are those designed to be used this way, while most slashing 
and blunt weapons benefit much less.  Among blunt weapons, staves and hammers are the 
most suited to precision work.

See Also: Massive Blow, Anatomy, Find Weakness

Trainers

Avalon: Bercilak
Kolond: Duthien (only trains dwarves)
Losthaven: Raelan Jax
Valathyr: Mitandim
Mycenae: Kyros
Obsidia: Goth
Othrys: Ripheus
Quetlatl: Itozuma Wanders
Shadow Tower: Boko
Shatterspire: Sthlar
Stillwater: Captain Roberts
tlaxcala: Axton
Association required:
Maidens of the Spear:  Sulin
the Stalkers of the Gate: Kalyxes
Wandslingers: Clyde
Guild required:
Aisenshi: Musashi
Coven: Lynda Xenetha
Elflords: Celeborn
Hawkmen: Katar
Hawkmen: Shayera
Justicars of Axa: Edwin
Justicars of Axa: Strom Thromgald
Knights of the Round Table: Sir Lancelot
Nizari: Hasan Wanders
Ordo Ignis Aeternis: Aedryl
Ordo Ignis Aeternis: Badlokk Wanders Skarlan
Quest required