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A enemy wizard cast lightning bolt while within five feet of a tempest domain cleric. The cleric inquired if the lightning bolt triggers the wrath of the storm feature since the enemy wizard was "attacking him."

Wrath of the Storm description says:

When a creature within 5 feet of you that you can see hits you with an attack, you can use your reaction to cause the creature to make a Dexterity saving throw. The creature takes 2d8 lightning or thunder damage

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