Noble Phantasm

She then raised her sword to the dark clouds above. Though it seemed like she acted so arrogant as to think she could cut the sky with her own weapon, the unusual magical energy flooding the blade was impossible to ignore.
I jumped forward.
“I won’t let you—!”
“Too late,” she said, bringing down the sword with its enormous amount of magical energy.
From the empty space before her, something expanded.
It looked like she had cut open space itself. Though it seemed that way, it was probably more like materializing a spiritual entity, or some similar phenomenon. Whichever the case, the appearance of the object pushed aside the air in its place, creating a powerful shock wave that threw me backwards.
A stinging pain covered my skin.
It was the first time I had felt that. My body was starting to reject the enormous amount of magical energy I had absorbed.
“Ihihihihi! No, no, no, no, no! That’s not allowed, Gray! Anything but that! Even if it’s us, this isn’t an opponent we can beat!” Add shouted.
Lightning struck once again.
Lightning from the dark clouds overhead repeatedly struck around the armoured woman, as if in blessing.
The lightning-clad form was that of a two-horse chariot. It wasn’t a weapon of the modern age. It was an ancient symbol, a vehicle pulled by horses or something similar, running across the battlefield trampling all underfoot.
“—what?!”
I heard a stunned voice.
Of course, that was to be expected. The creatures pulling the chariot were made entirely of bone. And though they were only skeletons, the lizards had powerful looking wings. Were they small dragons? With no forelimbs, they looked like the long extinct Wyvern, a phantasmal species.
Watching that chariot drawn by dragons of bone, my master’s expression continued to twist.
“… but, that …”
“Master?”
But I understood.
This was a Noble Phantasm. The same as the holy spear hidden within Add. A weapon that surpassed human intellect. But thanks to its terrible nature, I could predict what type of Noble Phantasm it would be.
Before coming to the Rail Zeppelin, Reines had told me.
‘… he was said to have two Noble Phantasms.’
‘—One, the chariot dedicated to the Gordion Shrine, the Gordius Wheel; Heaven’s Wheel.’
“My name is Hephaestion!” the woman roared. “The closest friend of the greatest King of Conquerors in history, Iskandar!”
Case Files IV, Chapter 3, Part 3