You have honed your divination magic to a degree that allows you to masterfully manipulate fate itself. You can spend 10 minutes in meditation, during which you can glimpse the threads of destiny that weave the tapestry of the universe.
After meditating, you can choose a number of creatures equal to your Intelligence modifier (minimum of 1) within 60 feet of you that you can see. For the next 24 hours, you can use your reaction to change the outcome of any attack roll, ability check, or saving throw made by one of these creatures, causing the creature to reroll the d20 and take the new result. You can use this feature a number of times equal to your proficiency bonus.
Additionally, you can cast any Divination spell you know without expending a spell slot, provided you have not cast that spell since you finished a long rest. Once you use this feature, you cannot use it again until you finish a long rest.
This class feature represents the near-pinnacle of divination magic, giving you unparalleled control over fate itself. Use it wisely, as the consequences of manipulating destiny can be unpredictable and far-reaching.