Thunderous Heritage

While attuned to this Claymore, Deidra knows the Shocking Grasp cantrip. Additionally, whenever they cast a spell that deals lightning or thunder damage, they can elect to instead deliver that attack against a single target with a melee spell or weapon attack and gain any other melee weapon benefits. If the spell would have been an area attack, when you deliver it this way you have advantage on the attack roll.
This weapon will grow with Deidra’s Experience.