Twin blades are martial melee weapons.
The twin blade(also called two-bladed sword) sword was approximately the same length as a great-sword or quarterstaff, but had two short-sword sized blades at each end. The twin blade was a double weapon that could be used as if fighting with two separate weapons and was wielded two-handed if used so.
Damage: 1D6 + Strength/Dexterity Slashing
Properties: Finesse, Two-Handed, Striking