King's Knife is a Duergar variant of the common Longsword. It is identical to a Longsword in all but appearance.
Crudely forged with mismatched components, nearly rusted through, and plenty sharp.
Properties
- One-handed damage
1d8 (1~8) + Strength modifier 
Slashing damage - Two-handed damage
1d10 (1~10) + Strength modifier Slashing damage - Details
Longswords 
Rarity: Common
Enchantment: None
Versatile- Dippable
Melee: 1.5 m / 5 ft
Weight: 1.35 kg / 2.7 lb
Price: 75 gp
Where to find
King's Knife is dropped by Stone Guard Orgarth in Grymforge.