An Isekai Story

You accidentally trigger a series of incredibly fortunate coincidences that aid your allies which lasts for 1 minute. Choose up to three allies you can see within range. For the duration, whenever one of the chosen allies makes an attack roll, ability check, or saving throw, they can choose to have the result be a natural 20. This effect can be used a total of three times among the chosen allies before the spell ends, described as seemingly random acts of luck that inexplicably benefit your allies.