Antspur Rapier is a Thrusting Swords that scale primary with Strength and Dexterity. It can be infused with Ashes of War, buffed with magic and consumables.
What I like about this weapon is that it can inflict Scarlet Rot and a very good weapon for applying multiple status effects to enemies thanks to its versatility.

Combine with Repeating Thrust ash of war, you can unleash a flurry of thrusts to perform up to four consecutive attacks, making it powerful when combined with the Winged Sword Insignia.