Tyt

Celestial wields near-ultimate power, but he has some form of limitation/weakness that limits him from being truly omnipotent. he may be absolute in specific fields or may achieve an almost infinite number of effects across all fields with their near-omnipotent skills.

Despite being limited, Celestial still possesses an unimaginable level of power at their will. Depending on the series, Celestial's power may or may not backfire or drive him to a weakened point. Nigh-Omnipotence has various types: Some users are created outright with it and can innately learn their powers like breathing. Some users are bestowed and require extra training to know fully about it. Some users may be sealed/fused with it and need to realize what their power is, and some users gain this by supernatural means and can master this with ease.

Morality of Nigh-Omnipotence is free than most, if not all, insane abilities. Also, Nigh-Omnipotence is not well-demonstrated in fictional stories, movies, or TV series. This way, Nigh-Omnipotent beings can be good, evil, neutral, hero, villain, anti-hero, anti-villain, criminal, trickster, mad scientist, black magician, chaotic, tyrant, madman, psychopath, or anything else imaginable. Any morality is possible as long as the ability is limited to true omnipotence.

Nigh-Omnipotence and Omnipotence are almost similar in every way. Between the two, one is a state of all-power and the other a state of near-limitless power.

It ranges from the lowest level to the highest level: some users can do anything but are limited to certain spatial/temporal/dimensional areas; other users are absolutely invincible, immortal, invulnerable and have no weaknesses but he can't do something in a particular way, have limited powers or can't affect something. No matter how powerful Celestial is, he will always be limited to certain exceptions.

While Celestial isn't truly omnipotent, he still possesses many high-end abilities including but not limited to: Absolute Force Manipulation, Absolute Psionics, Absolute Will, Nigh-Complete Arsenal, Psionic Godhood, Physical Godhood, Nigh-Absolute Immortality, Nigh-Omnipresence, Nigh-Omniscience, Omniverse Manipulation and Reality Warping. Celestial can achieve unimaginable effects and can possess almost unlimited power.

In short, Celestial is almost all-powerful and nearly invincible.

Celestial possesses near-complete immortality: they don't age, can rapidly heal from wounds, and will essentially live forever. However, there are exceptions to their immortality, with some factors being able to harm and ultimately kill him.
Celestial is immune to almost all kinds of damage, be it physical (internal or external), mental, spiritual, and even conceptual. Celestial can be immune to all those damages except for one or more exceptions.

Celestial can regenerate from anything/everything on the same level as Absolute Regeneration but his regeneration can still be bypassed/erased/weakened by various means. Also, Celestial may not be able to heal irreversible wounds, rendering their regeneration just "near perfect".

Celestial possesses most powers, but not all of them. Celestial might be able to have all the known powers based on their particular nature or classification. Or Celestial simply possesses almost a 'Complete Arsenal' of powers but not all of them.

Celestial has all his capabilities, attributes and aspects at a maximum and limitless level. At the most basic level, Celestial have a supreme and absolute physical and mental condition, with absolutely nothing being able to surpass him in those attributes.

For example, with his strength, he could lift multiverses or punch so hard reality is distorted. With his speed, he could travel infinite distances/execute infinite actions within a finite amount of time and go everywhere and everywhen faster than instantly. With his intellect, he could outsmart the smartest cosmic beings effortlessly.

The other attributes of Celestial (if he has them) will also be at an absolute level, such as his regeneration, invulnerability and potential, actually having the physiology of an nigh omnipotent being.

Celestial is present almost everywhere at the same time, usually being limited by/within a certain domain, such as time, space, or nothingness.

Celestial is able to generate illusions that are realistic to the point where the illusions can confuse all the senses of the target, making it impossible to break free unless willed by Celestial. Celestial can also create illusions on a large scale, from a small region to planetary or galactic region, etc.