Deflective Weapon

Effect:  You summon a shadow-like version of your deity’s sacred weapon.  If you don’t have a deity or your deity doesn’t have a sacred weapon, choose any weapon.  You gain a +1 to your AC.  You can choose, as a bonus action to throw this weapon at any enemy within 30 ft using a spell attack dealing 1d6+your spellcasting ability modifier force damage on a hit.  When you attack in this way, your AC bonus decreases by 1.  You can only throw one weapon per round.  Once you have thrown all your weapons, the spell ends.

Upcasting:  At level 4 and every other level after that, you gain an additional shadow-like weapon.  Each additional weapon adds 1 to your AC and can be thrown like the original