The three-eyed tribe of God Eye System. This tribe was relatively large in Three Immortals.
Members of this tribe were born with an eye positioned vertically on their forehead. If one could cultivate this eye into a golden form, they would gain great powers.
Normally, just training this eye a bit would allow them to read incredibly fast on top of remembering the entire content.
With the golden form, they could easily see openings and destroy all illusions, turning complexity into simplicity… All in all, they would gain many heaven-defying abilities.