Knightly Sword

Defending: A defending weapon is either made for parrying, has advanced techniques for use in parrying, or both. When you use a defending weapon, you can use your reaction to defend against a melee weapon attack that hits you. If you do, increase your AC by 1d4 against that attack.

Guard: Guard weapons allow you to fight defensively, using the weapon's long haft or flat surface for parrying. While you wield a guard weapon, whenever a hostile creature moves within your reach when you didn't move on your last turn, you can use your reaction to make a weapon attack with the guard weapon against that creature. If the attack hits, then it deals no damage, but the target immediately stops moving, and its speed becomes 0 until the end of its turn.

Precise: When you attack with a precise weapon, you can score a critical hit on a roll of 19 or 20. If a feature or item you have increases the numbers you can roll for a critical hit, a precise weapon increases that range by one. A fighter with Superior Critical, for instance, scores a critical hit on a roll of 17 to 20 with a precise weapon. Any roll lower than 20 must still hit to be a critical hit - it's not an automatic hit as if the roll was a 20.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Proficiency: martial, longsword Source: Grim Hollow: Player's Guide p. 131 (Third Party)