Shadow-of-Sundered-Star, more commonly known as "The Didact" or his Promethean name the Ur-Didact, was a Forerunner Promethean who held an extremely high status in the Forerunner society as supreme commander of the entire forerunner military. He wholeheartedly believed in the Mantle of Responsibility the Forerunners held to protect life, and initially opposed the Halo Army as a sin beyond measure. He was also the lover and husband of the Librarian. He serves as the primary antagonist in Halo 4 and the Halo Escalation comic series, as well as being a reoccurring character through the Forerunner novel series.

Classification: Forerunner-Promethean, Commander of the Forerunner Military, Husband of the Librarian

Powers and Abilities: Superhuman physical characteristics, telepathy, telekinesis, technology manipulation, light manipulation, enhanced senses, information analysis, data manipulation (Comparable to other Prometheans, who can create beings of pure information and transformation living beings to data), energy manipulation(Capable of creating Shockwaves from his armor), portal creation, homing attack and dimensional BFR(Able to create ruptures to Slipstream Space. Superior to the Warden Eternal who can create, and throw a Slipspace rupture that tracks it's target), biological manipulation(Comparable to other Forerunners who can modify the genetic structures of living beings, and even devolve them to a lesser state), teleportation(Comparable to other Forerunners Warriors who were able to teleport to other Forerunners Installations), levitation/restricted flight, reactive evolution(Forerunners Warrior armor could "evolve" during and after long fights), summoning (Can summon hundreds of Promethean Knights, Soldiers, Crawlers, and Watchers that follow his command), projectile reflection (Promethean Watchers can Hardlight shields capable of deflecting projectiles), immortality(Types 1, 2, and 6. Master Chief stated that the Didact was only temporary stopped after his supposed vaporization, WOG confirms that he is still alive), regeneration(At least High-low, regenerated an eye, likely Low-Mid, comparable to other Prometheans who've regenerated from loosing body parts, even after his body completely vaporized, Master Chief stated that he was just temporarily stopped), transmutation and the Composer(Turned the entire population of a city of 42 millions into digital essence), adaption(Forerunner armor is able to adapt to various planet's ecosystem), resistance to extreme temperatures, disease, radiation, high gravity, pain, the vacuum of space, and transmutation (Highly resistant to the effects of the Composer)|Same as before, true-flight, large size(Type 4) with the Mantle's Approach

Attack Potency: At least Small City Level(Can survive the output of two Composers and damage enemies of this level of durability. Very casually ionized a metal barrier), possibly City level (Broke the Hardlight shackles used by Cortana to restrain him, said shackles were connected to the Mantle's Approach power grid that later generated a bubble around Master Chief that withstood the HAVOK nuke. Master Chief implied he could've destroyed the UNSC Infinity, but by what means is unknown), the Composer can also ignore conventional durability|Moon level+(Can pilot a War Sphinx which is capable of destruction on this scale), far higher when piloting the Mantle's Approach (As a flagship for it's time, it should be far more powerful than the War Sphinx)

Speed: At least Superhuman movement speed with at least Supersonic combat speed, likely higher|Unknown

Lifting Strength: At least Class 10(Far stronger than the likes of Atriox, and Warden Eternal, both of whom are much stronger than Master Chief. Can lift and toss Spartans like toys), likely higher with Constraint Fields(Capable of restraining other Prometheans)|Class P(Is capable of lifting continental land masses into space)

Striking Strength: At least Small City Level+, possibly City level(Able to trade blows with other high ranking Prometheans, who should be comparable to him)|Moon level+, far higher with Mantle's Approach

Durability: At least Small City Level+(Can take hits from other ancient Prometheans with no problems. Completely unaffected by Prometheans weapons), possibly City level(Vastly more powerful than the Warden Eternal. Effortlessly tanked a burst from two Composers, and was confident he could survive five Composers at once)|Moon level+(Can withstand hits from other War Sphinxes and ships of comparable power), far higher with the Mantle's Approach(Is far more durable than the War Sphinx)

Stamina: Nearly limitless

Range: Tens of meters with Constraint Fields, Low Multiversal with scanners

Standard Equipment: Forerunner Combat Skin, his flagship, the Mantle's Approach, and the Composer. Various Prometheans weapons

Intelligence: Genius

Weakness: Anti-hacking system has limits and have been defeated by the likes of Cortana. The Composer is useless against mindless beings(Like the Flood). His summoned Prometheans are far below his physical tier|Same as before, The Mantle's Approach core is brittle to high yielding explosions.

Notable Victories:

Iron Man(MCU) Iron Man Profile(Base Didact and Hulkbuster Iron Man were used. Speed was equalized)

Inconclusive Matches:

Kessler(InFAMOUS) Kessler Profile(Both were 7-B and speed was equalized)