Azure Retaliation

As a reaction to a spell or weapon attack successfully hitting you, you present your back hand as a glowing sapphire ward presents itself to deflect it. You gain a +4 AC until the start of your next turn, should the attack become a miss, the attacker takes 4d10 force damage as the energy from the attack redirects back to them.

At higher spell levels, the damage increases by 1d10 per spell slot and the AC bonus increases by 2 every two levels higher this spell is cast.