Empowered Shield

When you would normally take damage from a ranged spell attack, or an area of affect spell, such as fireball, that is equal to or lower than the level casted at you may cast empowered shield as a reaction and instead take no damage. The spell may also be casted when one would normally be forced to make a Dexterity or Constitution saving, throw against an area of effect burst, etc. Such as a magma mephits death burst, or a dragons breath weapon. In this case the caster must make a concentration check, with a DC equal to half the damage, on a failure the spell works partially and the caster takes half the damage that would normally be taken, on a success the caster instead takes no damage.