A Reality Hegemon harnesses the very fabric of time and space to use at their leisure. They can use it to create shields where there weren't any before. They can use it to greatly change the outcome of a fight by shifting their blade closer to it's target. They can even sense their surroundings by sensing where there is occupied space. Reality Hegemons combine physical excellency and their ability to cause rifts in space to an extremely deadly result. The most powerful of these Hegemons were said to be on par with the demon lords of the Abyss. 

Reality Shift

Your attack rolls with weapons can score a Critical Hit on a d20 roll of 19 or 20.

Space Hegemon

You have Advantage on Wisdom (Perception) and Wisdom (Insight) checks.

Immediately after you score a Critical Hit, you can teleport up to half your Speed without provoking Opportunity Attacks.

Close Call

You gain the feat Lucky, but can only use it for attacks against you.

Infinite Space

You can shift space to prevent attacks from hitting.

Superior Critical

Your attack rolls with weapons can now score a Critical Hit on a roll of 18–20 on the d20.

Temporal Healer

You can revert time to repair damage and escape death.

Defy Death. You have Advantage on Death Saving Throws. Moreover, when you roll 17–20 on a Death Saving Throw, you gain the benefit of rolling a 20 on it.

Revert Time. At the start of each of your turns, you regain Hit Points equal to 5 plus your Constitution modifier if you are Bloodied and have at least 1 Hit Point.