From LSWiki

Class: Close Combat Weapon Skills

Attribute: Strength
Pedagogy: Physical Training

The ability to use axes and similar chopping weapons in combat.  When using such a weapon, 
this skill influences your ability to hit your opponent, the damage you inflict, how fast 
your attacks are, and how well you can use your axe defensively.

• Notes

Strength has the largest effect on the attack and damage ratings of an axe. Other attributes add 25% or less of their value

Strength adds slightly more to the deflection rating then to the attack rating

Larger axes get larger bonuses from strength and size

Precision Strike adds very little to the attack rating, but adds more for smaller axes

Massive Blow adds at least 100% to damage rating, more for larger axes. It also adds ~10% to deflection rating

Axe types, from smallest to largest

• Ono (Small Hanoman hand axe. Gets a very small bonus from sword skill)
• Hand Axe (Basic Axe, 100% bonus from strength)
• Axe (same as hand axe)
• Battle Axe
• Greataxe
• A pickaxe benefits from 30% of axe skill

Trainers

Trainer:
Avalon: Bercilak
Fort Shantaari: Trambor < 116
Gurbodax: Akurch
Losthaven: Raelan Jax < 116
Obsidia: Goth
Kolond: Duthien (only trains dwarves)
Skarlan: Badlokk
Mycenae: Kyros
Stillwater: Captain Roberts
Shatterspire: Sthlar < 116
Association:
Losthaven Guard: Durit Kolbad
Guild:
Aisenshi: Musashi
Battleragers: Borulien
Hawkmen: Katar
Knights of the Round Table: Sir Lancelot
Quest:
Corna: Marshall Osaka