"Explosion Style?" Sakura muttered to herself as she streaked through the sky towards the falling meteorite. "No, I don't know how to mould plastic explosive clay, so I'd have to get up close and personal... to destroy something that big, the detonation would have to be massive, and I'd get caught in the blast."
Her strongest techniques relied on having firm ground beneath her feet to push off from or take root in. Without any leverage, her punches would be severely weakened, and without earth to take root in, her wood and crystal structures would simply fall.
"The Lorentz Gun Jutsu?" Sakura thought out loud as her panic mounted. "No, I don't have anything big enough to launch that would crack that thing...!"
A shadow fell over Sakura as the meteorite filled her entire field of vision. She had no idea where Madara had plucked this alien rock from, but it was over two kilometres long at its widest point... not as large as the meteorite that had wiped out the dinosaurs, but more than large enough to cause widespread destruction for thousands of kilometres around.
"Wait, that's it!" Sakura shouted. "If I don't have a projectile, then I just have to make one!"
Sakura clapped her hands together.
For this jutsu to destroy that meteorite, she would have to build up more chakra than she ever had before, more chakra than her body could possibly contain. After all, the concept of chakra pool was just a measure of the potential chakra that could be extracted from the body's cells before one died— Sakura could draw a maximum of 198 KK from her stamina, but that did not mean she had that much power flowing through her pathways at all times.
Wind, Fire, Lightning... together, they formed Plasma Style, and through Sakura's hand seals, her fingers blurring as she weaved one after another, she mixed those three natures together, compressing them into a rapidly rotating doughnut of pure light...
"Plasma Style: Rasenchakram!"
But Sakura was not done just yet, and she began weaving a second set of hand signs.
…
It's the return of the busty kunoichi Sakura's science corner!
The Lorentz force equation is: F⃗=qE⃗+q(v⃗×B⃗).
F⃗ being the electromagnetic force, q being a particle's charge, E⃗ being the electric field, v⃗ being any particle's velocity vector and B⃗ being the magnetic field. Essentially, the total force is the sum of the electric force and the magnetic force.
It has already been well established that by using Lightning Style, Sakura could easily bend flames to her will. Fire is a weakly ionised substance, which means electric fields can act upon the few free ions that compose flames; that is the (qE⃗) electric force component of the Lorentz force equation.
Since these very hot, excited ions all move randomly, the directions average out to zero. The velocity vector for the sum of the ions is thus a zero vector, which means the cross product (v⃗×B⃗) is also a zero vector, which is why magnetic fields don't really affect flames.
However, plasma is a completely different story.
Just like fire, plasma is hot, which grants its particles motion… but since it is highly ionised, a soup of free electrons and positively charged particles, the motion of these charges create electric fields within the plasma, simply by existing. These electric fields influence neighbouring charges, thus giving them a temporary velocity vector, which is why plasma reacts to magnetic fields… and plasma reacts even better if an external electric field is applied, just like the Lorentz Gun Jutsu does!
…
Meanwhile, back on the ground…
"What's this?" Madara said, frowning.
His kunai and shuriken had just begun shaking and trembling in his tool pouch. He placed a hand over the leather cover to keep his weapons from jumping out. Whatever Sakura was doing, it was affecting him, even through his gigantic Susano'o...
…
Back in the sky…
Although Sakura couldn't understand why, due to her insufficient knowledge, when she created her Plasma Style: Rasenshuriken, it instantly reformed into a doughnut-shaped Plasma Style: Rasenchakram. Instinctively, it simply seemed easier to contain it this way than as a sphere, even though the shape was a little more complicated.
"SHAAAA!" Sakura screamed, raising her hands in the air. "Plasma Style: Absolute Extreme Poles Electro-Plasma Thunderclap Railburst: Super Sakura-Flavoured Dango x Doughnut Caster Mk. IV with Gold Leaf Sprinkles on Top Jutsu!"
There were a great flash of light and an ear-splitting boom…
…and the next thing Sakura knew, she was hurtling towards the ground so quickly that the shattered remains of the meteorite falling alongside her seemed almost suspended in the blue sky above. As she had been hovering in mid-air, the kickback from her own technique had sent her flying in the opposite direction and shattered her Susano'o's wings.
"Damn you, Newton…" Sakura muttered to herself as she crashed into the ground.
The Third Law of Motion was a harsh mistress, and despite the Susano'o's protection, Sakura briefly blacked out upon impact. Had she not been encased in her armour of chakra, she would have been reduced to a bloody pulp then and there.
…
"That was some jutsu," Madara's tinny voice echoed in Sakura's buzzing ears. "Even I would have undoubtedly died if you'd aimed it at me... I suspect not even my Susano'o could have warded off such an attack."
Sakura's eyes flew open, and she leapt to her feet.
"Uchiha Madara!" she snarled. "Are you crazy!? You could have ended all life on the continent!"
Madara had cancelled his Susano'o. He was standing there before her in his red Warring States Era armour, loosely holding his gourd-shaped metal war fan, his Uchiwa Gunbai… he was so close, but she couldn't kill him unless she got through this ultimate shield of his…
"Scorch Style: Extremely Steaming Murder!"
"This again?" Madara said, blocking the three superheated orbs with his fan. "If this is all you have, then I'm sorely disappointed…"
The fan began glowing as it converted the scorching hot chakra to wind nature…
"Ice Style: Chains of Earthen Ice!"
But before the fan could complete the nature transformation, Sakura slammed her hands against the ground, causing icy chains to burst from the earth and wrap around the gunbai, abruptly cooling it down. Made from real water, this ice could not be absorbed by the fan, and the metal began to grow brittle, long, zigzagging cracks forming along its spine...
"SHA!" Sakura shouted, clenching her fist as she aimed a punch at the fan. "Chakra Enhanced Strength!"
But before she could take even one step forwards, the world spun, and a feeling of great loss washed over her. This dull pain in her midsection… why was she on the ground all of a sudden? And why were… her legs standing over there… and why was… everything… going… dark…
"Wow, I have a great butt," Sakura muttered incoherently. "And who turned off the lights…?"
"Stand proud. You were strong," Madara said, looking down on her with his ringed eyes. "Or at least, your lower half can."
"I couldn't even see…" Sakura groaned. "No… fair…"
Sakura had been cleaved in half at the waist.
Without ever knowing they were there, she had been cut down by Madara's Limbo: Border Jail phantoms, which she couldn't even perceive, not even with her Sage Mode or her Mangekyō Sharingan. She could vaguely hear Madara speaking to someone else, but she couldn't make out their words… she was in shock, losing too much blood…
"Shit… gotta regenerate, but… my babies…" Sakura muttered, weakly reaching for her legs as Madara turned to leave, vanishing into a rip in space-time. "I need those… give them… back…"
And then everything went black.
Not wanting to regenerate a brand-new lower half, which would have meant abandoning her original womb, she had waited too long to activate Creation Rebirth, and now, there was no telling what would happen to her.