Twofold Counter

You materialize a magical sword that hovers around you. When an enemy attempts to attack you and you are not unaware of them, you can choose to stop the attack if the enemy rolls a 14 wisdom saving throw. If they succeed, the sword will instead disappear, and you will take 2 less damage from the enemy's roll (damage does not go under 5. If it already is, do nothing to it). If they fail, their attack is cancelled, and your magic sword deals 1d6(+wisdom or intelligence modifier, whichever is higher) unstoppable damage. At the max 9th level, the sword will deal 7d6 damage instead, and different dice depending on cast level. Only 1 sword can be out at a time, but attempting to cast it again while 1 is out will add an additional 2 unstoppable damage to the total damage.