Supreme-Grade is the absolute peak of power for all entities in the Infinite Reality, enforced by the reality's very existence. Reaching Supreme-Grade represents a power multiplier of 25x over Z-Grade entities of the same Rank.

Supreme-Grade once more opens the option to increase one's Rank. Reaching Supreme-Grade more than doubles the Maturation Energy granted from every Grade before the Lesser-Grade. It also grants one Standard Revelation upon advancement to the next Rank. Reaching Supreme-Grade grants a 50% Grade Disparity Bonus against those of lower Grade through the title Supreme-Grade [Rank].

To advance into Supreme Grade requires a final advancement of the total Potens within one's being, a Tribulation of Skill like those on the Path to Omega, but also a Tribulation of Power. The Tribulation of Power will be replaced by a Tribulation of Dikastes, which will not count towards the total Tribulation of Power Dikastes Replacement Variable. Additionally, the Tribulation of Skill will be turned into a Tribulation of Enorkos.

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Systems of Power with a Quantifying Aspect cannot show the exact number of each Poten's power. Instead, the majority label a Poten that has reached Supreme-Grade as 1Ud or 1x10^36. The difference in notation comes down to the Systems of Power in question. Systems without a Quantifying Aspect but containing the Display Aspect shows a Poten as simply Supreme.

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​If an entity refuses to continue to the next Rank, and instead attempts to remain in Supreme-Grade and advance a Grade further, a Tribulation of Ekmidenisi, a Tribulation of Enorkos, and a Tribulation of Dikastes will commence upon them simultaneously. As such, no information on theoretical Grades beyond Supreme exists.

If an entity does advance to their next Rank within the Supreme-Grade, they must face a Trial of Ascension as any in the SSS-Grade  and Omega-Grade must. They must also fulfill any prerequisites of advancement given by their Lesser Tier.​

Ranking up in Supreme-Grade grants five Minor Revelations, three Lesser Revelations, and one Standard Revelation. These Revelations can be used on any General Concept an entity possesses in order to help them advance further.

Ranking up induces a Lesser Maturation when advancing between only Ranks, and a Greater Maturation when advancing between Lesser Tiers.

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​Ranking up in the Supreme-Grade causes the body to ignite with an endless shifting pattern of energy, composed of the totality of their being. The Aspects of Existence, General Concepts, and all other forms of growth are represented. This glow is in addition to the Rank-based color of the Ascension Ceremony Glow.

Entering the Supreme-Grade in all Potens ignites the body in the same colors, not accompanied by the light corresponding to one's current Rank.

Entering the Supreme-Grade in any particular Poten causes the body to also ignite in the same shifting lights surrounding by the color of the Poten in question.