Before Morgana could react, Sai disappeared in a blur of motion. When he reappeared an instant later, his sword was sheathed and not a single living wyvern remained - neither in the sky nor on the ground. Morgana stared dumbfounded at the sheer scope of the carnage. Sai had moved so blindingly fast that he had singlehandedly wiped out her entire wyvern army before anyone could even perceive his actions.
Buto, translated as 'No/Null Step,' is a technique that empowers Sai to rapidly extend and retract his blade, creating a formidable challenge for opponents to evade or defend against. To execute this technique, Sai assumes a stance wherein he firmly grips his Zanpakutō with both hands, positioning the hilt at the center of his chest. Moreover, Sai's incredible speed transcends the limits of perception, allowing him to move with such swiftness that observers struggle to discern his form.
By combining his exceptional speed with the prowess of Kamishini No Yari, Sai becomes virtually untrackable, moving at such a rapid pace that opponents find it challenging to keep up with his actions.
Turning slowly, Sai regarded Morgana with an impassive gaze. "Your pets are gone. If you wish to face me with honor, then come, and let us finish this," he challenged. His hand rested casually on his sword hilt in subtle warning.
Morgana seethed, rage and humiliation warring within her. With a screech of anger, she cried out "You dare challenge me, worm?! I am Morgana, an immortal Enchantress! I have lived a thousand of your lifetimes! You are nothing before my power!"
"ENOUGH!" she thundered, her voice magically amplified to superhuman volume. Drawing herself up to her full, intimidating height, she raised her staff high. The clouds twisted overhead, shot through with veins of magical lightning. "You wish to battle me directly, Sai Graywoods? So be it, but you will regret your arrogance!"
Sai gave no reaction, quietly loosening his sword in his hand, ready to draw in an instant when needed. Seeing his lack of fear, Morgana snarled in frustration. How dare this mortal show such disrespect! She would remind him just why she was feared before all others.
"Feel the unlimited power at my command!" Morgana roared. She thrust her staff skyward, renting the very air with a boom of thunder. The clouds convulsed overhead, disgorging crackling arcs of purple lightning that rained down around Sai. The sheer magical force blasted craters in the pavement, but Sai flowed between the strikes like water, sword flashing in hypnotic patterns to deflect any bolts that came too close.
His speed and skill left Morgana momentarily confused, but she persisted, calling down torrents of rain to batter Sai and loosen his footing. Sai merely took a wider stance, rooting himself solidly. Next she summoned cyclonic winds, seeking to throw him about like a ragdoll, but Sai spun nimbly with the gales, using their power against them to accelerate his blade as he cut through the windstorm.
Frustrated but unrelenting, Morgana assailed him with every elemental force at her disposal. Searing flames charred the very air, forcing Sai back. Razor-sharp spears of ice threatened to impale him from all directions. The tortured earth exploded upward in jagged spikes to impede him. Through it all Sai adapted fluidly, neither retreating nor advancing, but biding his time.
Finally, Morgana drew herself upright, eyes blazing with azure flames. The air crackled with power around her. "You have proven a worthy adversary Sai, more skilled than I anticipated. But playtime is over." She raised her arms, arcane symbols manifesting as she chanted in a forgotten tongue. The sky tore open at her call, a vortex of titanic magical force.
Sai narrowed his eyes, dropping into a ready stance with one hand resting on his sword hilt. Morgana was done testing him, it seemed and was ready to unleash her full might. Very well - he would answer with the full strength of his blade, no longer holding back. They would see now whose resolve was greater.
"Now, face the wrath of all the planes!" Morgana screamed, bringing her arms down in a mystic gesture. The vortex exploded outward with a roar, raw magical power channeling directly into Morgana. The Enchantress rose into the air, eyes glowing like blue suns, body wreathed in argent flames. With a thought, she directed the vortex's energy toward Sai like a beam of pure force.
Calmly, Sai drew his sword, the black metal reflecting the magical flames like a pool of oil. He held it parallel before him, focusing all of his indomitable will into the blade. "Special Hado#10: White Flame of God Emperor," he pronounced. Ghostly white flames sprang to life along the sword's edge as Sai poured vast power into it.
