Warding Flare is a Light DomainClericReaction. It allows a Cleric to impose a Disadvantage on an attacker, increasing the chance for the attack to miss.
Description
Shield yourself with divine light. Use your reaction to impose Disadvantage on an attacker, possibly causing their attack to miss.
Reaction. It allows a Cleric to impose a 
Disadvantage on an attacker, increasing the chance for the attack to miss.