>Sonic is literally more than 10000x stronger here, so you gonna need some good proof that Kirito's probability manip can raise his AP that high.
Hai Hai. Kirito struggled a lot to fight against Subtilizer (Pre-Incarnation-Empowered) due to Subtilizer having Intangibility, Inorganic Phsyiology (Type 1), Nonexistent Physiology (Type 1), etc. and just simply being a lot more powerful than Kirito overall. (Like literally. Kirito couldn't damage Subtilizer at all, even when stabbing his back with a sword.) Kirito's forcefield got broken.
Gabriel Miller showed absolutely no sign of evading.
Still smiling thinly, he simply opened his arms wide.
Eight colors of light pierced into his bluish darkness-wrapped
body.
Not missing the opportunity as his upper body trembled, I swept
the sword in my right hand towards the man’s torso and thrust
the sword in my left hand through his chest. Slimy darkness
splashed and left a chill where it brushed across my skin.
Right afterwards I flew to pull back the distance and whirled
around again.
What my eyes ended up capturing was—
Gabriel slowly drawing the spilled, amorphous darkness back
towards him, and turning around as if nothing had happened. The
jacket covering his body was unscathed.
I knew it.
This man’s attribute was the ability to absorb slashes, thrusts,
flames, freezing, whirlwinds, steel arrows, water streams, crystal
blades, rays of light, and dark curses.
The fabric of my coat and the flesh of my right shoulder, caressed
by the void blade during the instant we had clashed, had been
destroyed and looked as though it was peeling away as blood
spurted.
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Ten or more bolts of jet-black lightning fired radially outwards,
turning at sharp angles mid-trajectory and heading straight for
me.
I clenched my teeth and hurled up an imagination barrier. This
was what I used when he had attacked Alice’s two dragons, but
back then I was supremely confident about blocking the lightning,
and now, half of my concentration was focused on healing my arm
— the very realization of this weakened the barrier—
I felt weighty impacts on various parts of my body.
Three streaks of dark light had jabbed right through the barrier,
my torso, and both of my feet. A horrible chill surged through me
before I felt any pain.
Before my eyes, my puncture wounds were already crawling with
bluish-black void, threatening to consume my existence.
Subtilizer then transformed himself into the Angel of Death (Incarnation-Empowered) making him even more powerful than he was before. By this point, Kirito knew that he is weaker than Subtilizer to the point he gave up on fighting.
Gabriel slowly crossed his arms in front of his body, a gesture that
suggested he was storing power.
His dark aura began to violently shiver. It undulated with the
ferocity of flames, growing denser and denser.
“HAAAAAAAAAAAAAA!”
His arms spread wide with a thunderous shout.
Whoosh. A new pair of black wings burst from his already
expanded wings and unfurled to full length. And then another pair
on the bottom.
Gabriel slowly gained altitude as a total of six massive wings
flapped, in order, from top to bottom. A jet-black halo materialized
above his head and his camouflage uniform dissolved, replaced by
a thin, dark, wriggling cloth.
His eyes had turned inhuman before I even noticed. The sockets
were filled with nothing but bluish-black light.
Truly — an angel of death.
A transcendent being that hunts and plunders the souls of
humans. What the hell kind of attack would work against someone
who sees themselves as that?
I looked away from the embodiment of fear itself and checked on
the figures of Asuna and Alice, who were running up the skyward
staircase hand-in-hand. They still needed two, no, three minutes
before they could reach the floating island.
It’s just that I was no longer confident I could buy them that much
time.
***
Such omnipotence.
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I looked up towards the enemy’s once human form.
I could no longer come up with anything that might frighten or
threaten this man. His right arm, supposedly blown off by Sinon,
had fully regenerated before I could even notice, as though in
defiance of even a gunshot wound.
To put it simply, I was not mentally prepared enough.
I hadn’t underestimated Gabriel Miller. His eerie air demanded
caution to the greatest extent.
But that was the very reason I had given up any hope of winning,
perhaps before this battle had even begun. As long as I bought
enough time — as long as I stalled the fight until Alice and Asuna
were able to log out, both the enemy and I would be trapped in a
time prison for more than 200 years, unable to return to the real
world ever again.
Probability Manipulation (If an incarnation user truly believes that they are weaker than their foe, even subconsciously, reality will be rewritten to ensure their defeat (and vice versa). If both sides are both completely confident in a battle, it will be a battle to see who's mental willpower is stronger than the other.)
Just when Subtilizer was about to absorb Kirito's incarnation, Kirito resisted his ability to absorb incarnation and the souls of his enemies through sheer willpower, which includes affecting the mind as well.
Kirito turned daylight into the Night Sky and absorbed 10,000 stars making him 10,000x stronger than before. Kirito is now stronger than Subtilizer to the point none of his abilities worked against Kirito (Kirito's forcefield was way stronger than before deflecting Subtilizer's attacks narrowing the gap and becoming stronger than him).
The piece of meat in his palm continued to hammer badump,
badump, as though in protest, as Gabriel brought it close to the
edge of his expressionless mouth and whispered to the levitating,
dying boy.
***
“Your feelings, your memories, everything of your heart and your
soul… I will now devour it all.”
The angel of death proclaimed. I gazed down at him through halfclosed eyes.
Gabriel Miller’s colorless lips parted wide, as if about to bite down
on a ripe apple, and sank his sharp teeth into my plundered heart.
…Squish.
There was a dreadful noise.
His white face contorted intensely; great volumes of blood that
was not mine gushed from his mouth.
Of course.
He had bitten into the great number of tiny blades I generated
inside my own heart from Metallic Elements.
“Unf…”
Gabriel covered his mouth and pulled back.
I moaned scratchily:
“How are you gonna find… my spirit and memories in there? My
body’s just… a container. My memories… will always be…”
Right here.
Merged with my consciousness itself, never to be separated.
The pain of my heart getting torn to shreds was brutalized beyond
description. But this moment was my biggest and final
opportunity. There wouldn’t be a second chance if I missed it.
Eugeo was still fighting when his body got cut in half.
I spread the two swords in my hands to my left and right, crying as
blood rippled away from me:
“RELEASE RECOLLECTION!!”
Pure white and pitch black discharged at the same time.
Massive numbers of ice tendrils exploded from the front-facing
Blue Rose Sword, tightly binding Gabriel’s body.
Then from the Night Sky Sword raised high above—
A monumental, dark pillar towered into the sky.
Dark light roared upwards, boring through the crimson and
gaining soaring altitude — then spreading in all directions almost
as if it had collided violently with the sun.
Bit by bit, it was covering the sky.
The crimson was being painted over at terrific speed and the
daytime light vanished.
Darkness reached the horizon at once, and continued to expand
beyond.
No, it wasn’t the darkness of a void. It was velvety, had a slight
temperature…
An infinite night sky.
***
“…There. Real power. Real light.”
Just then, the surviving Fist Fighters began singing a low martial
dance, and hundreds of stars scattered in a split second.
Thousands, tens of thousands of stars.
***
The remaining main forces of Human Empire Defense Army at the
Great Eastern Gate, Integrity Knight Fanatio, Deusolbert, Knightsin-Training Linel and Fizel, and hundreds of lower knights were at a loss for words, their faces raised towards the unscheduled night sky.
The thoughts coursing through each of their chests was different,
but the strength of their prayers and wishes was the same.
Fanatio prayed for the world loved by the departed Integrity
Knight Commander Bercouli, and the world in which the new life
in her belly would later live in.
Deusolbert placed a silent right hand over the tiny ring gleaming
on his left finger, praying for the world in which he had once lived
in with a certain someone who once bore the same ring on their
finger.
Linel and Fizel prayed that they could once more encounter the
swordsman who had taught them the meaning of true strength.
The other knights and Guardians prayed for peace to return to
their precious world, and for it to endure forever.
The mountain Goblins in the hilly north of the Dark Territory
began praying, and the plains Goblins in the western wilderness
began praying too.
The Orcs in the central wetlands waiting the return of their
husbands and fathers prayed, and the Giants of the southwestern
plateau were praying as well.
The lilac-skinned humans in the castle towns adjacent to Obsidia
Citadel, and the Ogres in the southeastern grasslands closed their
eyes and prayed.
The night passed over the mountains, arriving in the Human
Empire without delay.
Countless stars populated the sky above Rulid.
Looking back over her shoulder as she ran, Alice witnessed a
scene beyond imagination.
The enemy, incorporeal void blade raised, six-part black wings
expanded.
Vines of ice, wrapped in layers and layers over his body, hindering
his movement.
The ice was coming from a glowing bluish-white sword, gripped in
the hand of a swordsman in black with dragon wings sprouting
from his back.
Everything under the swordsman’s chest had already vanished.
His willpower to still continue fighting, in a situation where
normally one would immediately lose all of his Life, was nothing
short of miraculous.
But the true miracle was taking place above both of their heads.
A torrent of darkness was ascending from the pitch-dark
longsword raised high in the swordsman’s right hand, covering
the entire world.
But it was not a darkness without light.
The northern sky began to shimmer with countless dots of light.
Clusters of stars shining many different colors gradually adorned
the sky… the night.
All of a sudden—
The stars began to move.
Issuing a clear, somewhat bell-like, somewhat harp-like sound, the
stars congregated towards the southern end of the world. White,
blue, red, green, and yellow light left long, thin trails as they traced
out an enormous rainbow in the night sky.
Instinct told Alice that these stars were the power of the spirits of
everyone living in this world.
The people of the Human Empire.
And the people of the Dark Territory.
—Gently… covering… this small world… like the night sky…
The darkness bursting from the sword was transforming day to
night, creating a night sky true to its name.
I understood was what happening the moment the cluster of stars
drifting here from the north became a rainbow-colored waterfall
and poured into the blade.
The Night Sky Sword’s power was its ability to absorb Resources
within a far-reaching range.
And the strongest Resource in this world was most definitely not
the Spatial Resources allocated by the system, like the sun or the
land. It was the power of the human spirit. The power of prayers,
wishes, and hope.
The final member of the almost infinitely descending star cluster
was absorbed into the sword.
Then, the very second when the last two golden and multicolored
stars dissolved into the body of the blade—
The Night Sky Sword beamed with the rainbow of emotions from
a host of people.
The light traveled from the hilt into my arm, permeating my entire
body. My lower body, wrecked by Gabriel, regenerated in an
instant in the warm radiance.
The starlight congregated at my left arm too, giving the Blue Rose
Sword in my hand a blinding luminance—
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He no longer resembled anything like a human. Wrapped in
bluish-black flames, his naked, liquid metal-like body was giving
off a menacing glow, and the violet-blue light ejecting from his eye
sockets reminded me of escaping hellfire.
The giant void blade in his right hand went high up in the air, and
his wings that were now also blades lengthened in all directions.
Just then, his left hand aimed at me and a uncountable number of
tightly packed black wires burst forth.
“…OHH!!”
I set up a barrier of light with a yell and deflected them.
This can be boosted with incarnation's follow-ups which includes: Empowerment, Statistics Amplification and Statistics Reduction (Belief in one's own strength will amplify one's own power, however the opposite can happen to the user as well if they are not confident in a matchup)
Pretty much the quotes above
I guess Kirito narrowed the AP down and is possibly stronger than Sonic now. ¯\_(ツ)_/¯