Masterwork- Advance one damage category, gain +1 to attack rolls.
Steel With Silver & Gold- +1d4 damage against evil creatures, +1d6 damage against werewolves and anything from Hell. Bonuses don't stack.
Stone- Min. Strength increases by 2, critical fail results in reduction of damage by one damage category.
Comet Ore- Min. Strength decreases by 1, gain +1 to attack rolls.
Rusted- Advance one damage category, natural 1 or 2 results in reduction of damage by one damage category, critical inflicts 1d4 damage on the target's next turn.
Mythril- Min. Strength decreases by 2, advance one damage category, gain +2 to attack rolls.
Damage Categories
1d4
1d6
1d8
2d4
1d10
1d12
2d6
3d4
2d8
3d6
1d20
2d10