Eldenser's Dragonsight

Epic Boon Feat (Prerequisite: Level 19+, Intelligence 22+)

You tap into the knowledge of alternate versions of yourself, gaining the following benefits.

Ability Score Increase. Increase your Intelligence score by 1, to a maximum of 30.

Apotheotic Assimilation. You can cast the Dream of the Blue Veil spell, requiring no material components, merging with a version of yourself on the world you travel to. Make a Charisma saving throw (DC 8 plus your charisma modifier and your proficiency bonus). On a success, you take their place, gaining access to their knowledge, as described by the DM. On a failure, your knowledge and personality are absorbed by your alternate self, who takes your place as an NPC under the DM's control.