Dojutsu

I've created one myself, as all the comments had jumbled my thoughts, and the eye's appearance was also designed by me. However, I lack the drawing skills to bring it to life. I apologize for that. If I ever manage to draw one, I'll be sure to share it here.

{Sorry if you don't get to see your favourite abilities in this.}

[Nagato's Dojutsu - Shinjutsu.]

The Dojutsu itself is an extraordinary Shinjutsu. Nagato, having deeply inherited the potent powers of the Otsutsuki, possesses a unique Dojutsu.

[Shinjutsu - Divine techniques]

They are Used by the Otsutsuki clan.

[Tenkyūgan -Celestial eye ]

Nagato's left eye will undergo a massive transformation, its sclera assuming a cosmic greyish-black hue, and its pupil taking on a star-shaped form. Inside the iris, nine dots circle around the central pupil, resembling planets in orbit. A radiant blue glow enveloping the iris, creating a striking contrast with the greyish-black backdrop.

[Temporal Freeze - Chrono Gaze ]

The user can briefly halt the flow of time within a small area, rendering anything inside it motionless for a short duration.

[Gravity Focus - Graviton Glare ]

Manipulate gravity within a small area, making objects or opponents significantly heavier or lighter

[Anticipation - Precognition Gaze ]

Grants the user limited glimpses into the immediate future of events they focus on, aiding in dodging attacks or predicting outcomes.

[Entropic Decay - Entropy Vision ]

Accelerates the natural entropy of objects or living beings that the user focuses on, causing them to deteriorate rapidly.

[Dimensional Blink - Warp Gaze ]

Blink short distances within the user's line of sight, granting instantaneous movement.

[Mimicry - Reflection Gaze ]

Allows the user to mimic the abilities or jutsu of those they make eye contact with, though to a lesser extent.

[Energy Drain - Vitality Siphon ]

Drains the life force or chakra of those they make eye contact with, replenishing their own energy.

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Naturally, he would have to master every single ability that this Dojutsu grants him by himself, as no one else possesses this Dojutsu to offer guidance or assistance. This slow progression will help ensure he doesn't become overpowered too quickly.