The Gold Tracer and Silver Tracer are both exceptional weapons (albeit with exceptional dexterity requirements), one being arguably the best weapon for inflicting bleed and unprecedently being the only weapon to gain a superior moveset when wielded in the left hand, the other being the weapon with the highest critical modifier and the nigh-unique ability to inflict toxic damage, making trading the relatively less useful soul somewhat common among players.
In combat, Ciaran uses flurries of weak but fast attacks and dodges in conjunction with throwing knives and Lloyd Talismans to rapidly wear down her opponents, much in the style she used to hunt the foes of her lord. She uses her signature Hornet's Ring and the Lord's Blade Set as well as the Gold and Dark Silver Tracers, which she offers you in exchange for Artorias's soul. She represents the classic thief-like character of the Four Knights. Lord's Blade Ciaran, most commonly known as simply Ciaran, is one of the Four Knights of Gwyn Lord of Cinder and member of The Lord's Blades.
Lord's Blade Ciaran is a Character in Dark Souls.