Aegis of Assault

With a flash of light, you bring instant vengeance to the attacking enemy. As part of the reaction used to cast this spell, you choose to do either one or both of the following:

• Teleport to an unoccupied space, as long as that space is not farther away than you are now from the creature that made the triggering attack.
• Make one melee weapon attack against the attacker if it is within reach. You can use your spellcasting ability instead of your Strength for the attack and damage rolls of this attack if you choose. If the attack hits, it deals an extra 1d4 radiant damage.

If you are unable to do either one, the spell ends. Otherwise, after the triggering attack is resolved, the creature who made that attack has disadvantage on attack rolls against creatures besides you until the end of its next turn.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the range increases to 60 feet, and the radiant damage increases by 1d4 for each slot level above 3rd.