Sharpening Stone

Activated from Crafting menu.
Duration: one turn per Fighter level.
Only the highest dmg from one Stone will apply, but you can combine Basic and Improved Stone with Keen Stones.

Basic Sharpening Stone.
Prereq: 15 Levels Fighter
Cost:250
Effect: +1 Slashing Dmg to the targeted weapon.

Improved Sharpening Stone.
Prereq: 18 Levels Fighter
Cost:500
Effect: +2 Slashing Dmg to the targeted weapon.

Keen Sharpening Stone.
Prereq: 21 Levels Fighter
Cost:750
Effect: Keen to the targeted weapon, won't work on ammo.

Epic Sharpening Stone.
Prereq: 25 Levels Fighter
Cost:1000
Effect: +3 Slashing Dmg and Keen to the targeted weapon. The keen effect won't work on ammo.