Bladesingers Parry

V, S, M, Action, Duration 10 minutes
You summon a blade of magical force into a
free hand, which acts independently.
+1AC, and when a creature within 5
feet misses you with an attack, they recieve
1d4 force damage, as the blade finds an
opening to attack.
At higher levels, the spells damage increases
by 1d4 per spell level cast.