Reincarnated with an Analysis system.

With a fierce determination and a deep-seated hatred, Lilith began to recite the spell inscribed in the magic book that she was clutching tightly in her hands.

"Vakrok, Jikal hioki can truk." The ancient words rolled off her tongue as she focused all her energy into the spell.

Despite the sounds of clashing weapons and the chaos of battle all around her, Lilith remained focused on her goal. Her eyes were fixed on Benihime and her valkyries, who were charging towards her with their weapons drawn, their battle cries filling the air.

Benihime's keen eyes focused on the magic book, and a gasp escaped her lips as she recognized the page that Lilith was reciting from.

"It's the Salt Incantations!" Benihime's voice carried a hint of worry as she alerted her fellow Valkyries. The knowledge of this particular spell brought an unease to her, as it was known for its destructive and deadly power.

As Lilith continued to chant, a powerful energy began to emanate from her, surrounding her in a pulsing aura of dark magic. The air crackled with electricity as the spell began to take hold, and the ground beneath her feet trembled.

Benihime's expression turned urgent as she halted her advance, turning to face her soldiers with a commanding tone. "Listen to me!" She bellowed, "Something is coming and there's no time to explain, but I want every Valkyrie right here to stand in front of our skies!"

Her soldiers exchanged puzzled glances, unsure of what their leader meant by her cryptic command. Benihime's frustration mounted as she waited for them to comply, her eyes fixed on Lilith who was nearing the end of her incantation.

A sense of foreboding gripped Benihime as she watched Lilith finish her spell. The air around the battlefield crackled with energy, and a massive pillar of salt burst forth from the ground, rising up toward the sky.

Benihime's eyes widened in shock as she realized what was happening. "Quickly!" She shouted to her Valkyries, "Form a barrier! We have to protect ourselves from the spell!".

As soon as she spoke, Benihime began running towards her target: Yuri, who was sprinting past the enemies with her grim reaper following behind her.

Seeing how serious Benihime was. The Valkyries quickly obeyed, with a sense of urgency, the Valkyries sprang into action, swiftly maneuvering to take their positions in the sky. They lined up in formation, ready to intercept whatever danger was coming their way.

Benihime watched with a critical eye, making sure her Valkyries were in the right place at the right time. She knew that the Salt incantation was a powerful spell that could bring destruction if left unchecked.

The Valkyries were her best bet to counter the spell's effects, as their supernatural abilities would offer some level of protection against its potency.

Without wasting a second, Benihime raced after Yuri, determined to get to her before it was too late. Her mind raced with all the possible outcomes of the impending danger, and the stakes couldn't be any higher.

Finally, Lilith's voice echoed across the battlefield as she completed the incantation, her eyes filled with a sinister glee. Suddenly, a bolt of dark energy erupted from her hands, hurtling towards the sky and bursting into a puff of dark mist.

The fog swirled and danced in the sky for a while, before charging towards the battlefield like a tsunami, engulfing everything in its path.

The demons who were unfortunate enough to be caught in the fog's deadly embrace turned into salt in the blink of an eye, their bodies freezing in place before crumbling into dust.

The ground was littered with the remains of the fallen, their bodies frozen in grotesque poses, a testament to the dark power of Lilith's incantation.

The fog continued its path of destruction, leaving a trail of salt where it passed. Sato's forces were caught off guard, and chaos ensued as some tried to escape the deadly mist, while others tried to fight back against the demons that were still attacking them.

Despite the chaos, Benihime kept her focus on Yuri, who was running straight into the fog without any signs of stopping. Benihime's heart raced as she closed the distance between them, her eyes fixed on the figure of Yuri's back.

Finally, she was right behind Yuri, but the woman didn't seem bothered by the fog at all. Benihime's eyes widened as she started thinking to herself- "Is Yuri immune to the salt incantation, just like the Valkyries".

"Yuri!" Benihime yelled over the noise of the battle, "We need to get out of here! The fog will kill everyone who's not immune!"

But Yuri didn't slow down, didn't even turn around. She just kept moving forward, deeper into the fog.

With a quick tug, Benihime pulled Yuri back from the deadly fog, ignoring the confusion and surprise etched on the latter's face. Determination etched on her features, Benihime surged forward and plunged her sword into the ground, a cry escaping her lips as she focused all her power into creating a massive astro wall.

The wall shot up from the ground, growing taller and wider by the second, until it spanned the length of the entire battlefield, protecting Sato's forces from the approaching fog. The wall was so tall that it even blocked out the sun, casting a shadow over the battlefield.

As the fog approached the wall, it slammed into the barrier with a loud crash, but the wall held strong, not allowing any of the deadly mist to pass through. The soldiers behind the wall let out a collective sigh of relief, grateful for the quick thinking and bravery of their leader, Benihime.

Meanwhile, Yuri stood in stunned silence, watching as the events unfolded before her.

Deka's eyes widened in disbelief as he gazed up at the towering astro wall that now separated Sato's forces from the deadly fog. He couldn't believe what he was seeing - a wall that size must have taken an incredible amount of magical power to create.

As his gaze shifted to Benihime, who was standing proud and tall in front of the wall, he muttered under his breath, "Did she do this?" He couldn't help but feel a sense of awe and admiration for the powerful Valkyrie, who had just saved countless lives with her incredible magical abilities.