D&D 5E - Defensive Duelist fix?

Celeb Highlights
When you are wielding a finesse or light weapon with which you are proficient, you gain the following abilities.
  • Duelist’s Parry. When another creature hits you with a melee attack, you can use your reaction to add your proficiency bonus to your AC for that attack, potentially causing the attack to miss you.
  • Duelist’s Riposte, when an attack misses you, you can use your reaction to make a melee attack against the creature that missed you.
  • If you cause an attack to miss you by using Duelist’s Parry, you can use Duelist’s Riposte as part of the same reaction. If you do so, you cannot use either ability again until you have gone a round without using your reaction.

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