Boon of Elusiveness (5e Epic Boon)
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Boon of Elusiveness
As a reaction which you can take when you are hit by an attack or you have to make a Dexterity saving throw, you can become nearly impossible to hit. Until the start of your next turn, you have a +20 bonus to AC and to Dexterity saving throws, including against the triggering attack or effect. Once you have used this feature, you can't use it again until you finish a short or long rest.