This gleaming sword is bestowed with a minor blessing of an archfey. When you score a critical hit using this weapon, a burst of beautiful spectral rose petals springs from the blade and surrounds you, filling you with otherworldly vigor. You gain temporary hit points equal to the damage dealt by the attack, and you can immediately make another attack with the weapon.
Proficiency with a greatsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.