Angels' protection

You create a divine aura around yourself in a 15 foot radius sphere. You and all allies within the sphere gain the following benefits. Each ally that starts its turn in the aura gains a pair of ethereal angel wings that can help protect them against damage. These wings give a flight speed of 20 feet. If an ally leaves the area of the spell, their wings disappear at the end of their turn. As a reaction, an ally with wings can do one of the following:

Protective Cover: When you are the target of an attack, wrap your wings around yourself, granting you a bonus to armor class equal to your 1d4. This bonus to armor class ends after the attack. 

Evasive Maneuvers: When you are subject to an effect the requires you to make a dexterity saving throw, you can use your reaction to have your wings give you advantage on the dexterity saving throw.

Gift of Life: When you take damage from an attack, you can use your angel wings to soften the blow. When you take the damage from an attack, you can use your reaction to cap the damage you take from that attack at 50% of your maximum hit points. Using this feature shatters your ethereal angel wings and you cannot receive them again unless this spell is cast again.