Spectral Blade

You conjure a spectral throwing blade that always returns to your hand. You throw the blade when you Cast this Spell and the first time you Sustain this spell on subsequent turns, making a ranged spell attack against the AC of a creature within 20 feet. On a hit, you deal 3d6 spirit damage (or double damage on a critical hit). These attacks ignore any circumstance bonuses the target has to AC.