“...Impressive.”
As his low, but carrying voice reverberated in the surroundings, Alkeides exposed himself to the claws of the airborne demons in the center of the pulverized asphalt.
The claws bit into Alkeides’ shoulder with a dull thud. It seemed to the onlookers that it could easily have been a mortal wound.
Alkeides, however, pinned the arm of the gigantic demon whose claws were eating into him and seized one of its fangs with his free hand as it tried to bite him. The other demons launched a simultaneous heat ray attack, but Alkeides did not release his grip.
Then, he commended the hero he had deemed worthless. He spoke words of heartfelt praise, acknowledging that the modern serial killer without so much as a scrap of divinity was indeed a worthy foe.
“...Impressive, weakling. You’ve done well to corner me. You’ve done well to climb this high.”
“...? What are you...?”
The demon-Jack spoke, perhaps in response to an unpleasant premonition. Alkeides, however, ignored him and continued.
“What you have built does indeed have value. I could counter with Nine Lives... but your power is too valuable to merely defeat.”
“...?”
“Unknown killer, I will usurp you with respect.
“You are worth stealing.”
Then, the avenger activated his own Noble Phantasm. Neither Nine Lives nor King’s Order. His hidden, third Noble Phantasm, activated by his being warped into the Avenger Class.
“Regeneration Pandora.”
That instant, fate, hope and despair all changed places.
In an instant, the swarm of demons flitting through the air transformed into a crowd of powerless humans. The innumerable Jacks, having lost the power of flight, plummeted to earth.
“You... Impossible...”
The Jack whose claws had been buried in Alkeides’ shoulder had reverted to the form of an ordinary police officer. The sight that met his widened eyes... was Alkeides with the same horns that Jack had sported until a moment before poking from under his cloth, wings like black smoke sprouting from his back, and, most importantly, shrouded in magical energy several times stronger than his had been thus far.

Fate/Strange Fake: Volume 4, Chapter 13 ("Day 2, Night")