It was a martial art Yuuki had created using Sky Dragon Slaying Magic as its foundation.
Sky Dragon Tempest Art specializes in explosive power and defense. Unlike the usual fighting style of Dragon Slayers that release their magic directly at their enemies, this martial art instead channels the magic throughout the user's body, infusing their physical attacks with immense destructive power while simultaneously reinforcing their body with a layer of condensed air.
This layer of air acts as a protective barrier around the user's body, deflecting the incoming attacks while also granting them the unique attributes of the Sky Dragon. It enhances their speed and agility while giving them greater control over the surrounding air.
At that moment, Yuuki was using his newly created martial art to completely suppress Natsu and Gajeel.
"Hey, hey. You won't be able to defeat me if you guys don't try harder!" Yuuki laughed as he continued his relentless assault.
"Dammit, this guy is just too strong!" Natsu gritted his teeth as he fought back with everything he had.
"Guh! His fighting style is completely different from that of a normal Dragon Slayer!" Gajeel said and wiped the blood from the corner of his mouth.
The fight had only just begun, yet the two Dragon Slayers were already being completely overwhelmed by Yuuki. His attacks carried the explosive force of the Sky Dragon, which was far greater than the combined power of the two Dragon Slayers. On top of that, they couldn't breach Yuuki's defenses at all. The layer of condensed air surrounding his body made it extremely difficult for them to even scratch him.
Not to mention, Yuuki didn't even needed to use the self-healing ability of Sky Dragon Slaying Magic, since neither Natsu nor Gajeel had been able to penetrate his defenses.
As the three of them fought, the rest of Fairy Tail watched in shock and disbelief. They couldn't believe that Natsu and Gajeel, two of the most powerful mages in their guild, couldn't even hurt Yuuki. To make matters worse, the two Dragon Slayers were being completely toyed with by him.
"Damn! Yuuki is just too manly!" Elfman exclaimed with admiration as he watched Yuuki display his overwhelming power.
"Yuuki-nii is so strong." Lisanna commented as her sparkling eyes remained fixed on Yuuki, though she was also concerned about Natsu.
"Yuuki, you can do it! Onee-chan is cheering for you!" Mirajane cheered happily.
"He's really having fun..." Cana was speechless at Yuuki's action of playing around with Natsu and Gajeel, but a smile appeared on her beautiful face as she watch Yuuki fight.
"Are Natsu and Gajeel going to lose?" Lucy asked worriedly as she watched Yuuki completely supress them.
Hearing this, Erza shook her head and said, "If they want to win, it will be very difficult, considering how monstrous Yuuki is."
"Natsu..." Happy was on the verge of tears as he watched Natsu get beaten up.
"Being defeated isn't necessarily a bad thing. They can use this experience to grow stronger and overcome their weaknesses." Panther Lily didn't seem too worried, since this was only a spar.
From his perspective, if they were being beaten because they were weaker, they could use the experience as an opportunity to improve their abilities so they will not suffer in the future.
"...His strength is really on another level." Gray said in disbelief. From what he could sense, Yuuki was on the same level as Gildarts, or perhaps even stronger. This made him clench his fist. With another powerful mage now in their guild, Gray decided that he would have to train even harder.
"A-Amazing... My Sky Dragon Slaying Magic could actually be this strong." Wendy was amazed as she watched Yuuki use the magic she normally relied on for support and healing as a powerful offensive style. Seeing its true potential in Yuuki's hands, she felt a surge of motivation.
"I told you, you're not useless, Wendy. It's just that you haven't awakened your true potential yet." Charles comforted Wendy with a smile, happy that she had finally seen the true potential of her magic.
"Mn! I will train harder, Charles." Wendy encouraged herself as she watched the fight.
"To be able to master a Lost Magic in just a few moments... Yuuki is definitely a genius that appears only once in a hundred years." Makarov said in a serious tone.
Gildarts, who was standing beside him, also nodded with a pleased expression. "You're right, Master. Yuuki will become one of the pillars of Fairy Tail in the future."
"Ever since Mystogan returned to Edolas, we lost an outstanding mage in our guild. However, with Yuuki's appearance, our guild willdefinitely soar again." Makarov said.
"That's for sure." Gildarts said and laughed while thinking about what will happen in the future.
As the two of them talk, the fight between the three continued. Natsu and Gajeel refused to give up, doing everything they could to fight Yuuki.
"Fire Dragon's Crushing Fang!" Natsu shouted as he leapt in the air, closing the distance between them in just a few seconds. Flames engulfed his fist as he swung it toward Yuuki.
"Arrrrggghhhh!" Natsu roared as he thought he had caught Yuuki off guard since Yuuki hadn't even reacted. However, he was completely wrong.
Just as Natsu's attack was about to hit him, Yuuki calmly deflected the powerful strike with the palms of his hands, using a style similar to Tan Sao. Not only that, but the moment Natsu's flames came into contact with Yuuki, they were instantly extinguished.
"Nani?!" Natsu couldn't believe his eyes as his flames were extinguished without any reason.
"Don't let your mind wander during a battle." Yuuki plainly said.
However, before Natsu could react, Yuuki grabbed him and threw him toward Gajeel, who was also preparing to attack.
"Ah!"
Sending Natsu flying, Gajeel's lips twitched as he couldn't dodge the incoming Natsu and could only catch him. However, the force behind Yuuki's throw was too great for Gajeel to stop, sending both of them crashing to the ground and rolling across the battle field.
"Dammit, don't cause trouble if you don't want to help, Salamander!" Gajeel growled at Natsu.
"What did you say?!" Natsu immediately became angry at Gajeel's words.
Yuuki could only stare speechlessly as the two of them as they began fighting each other. "Come on, if you two want to fight each other, how about you try ending our fight first?"
"Guh! I'll fight you later! Let's deal with Yuuki first." Natsu said.
"Just what I want! Let's show him the true power of Dragon Slayers!" Gajeel snorted.
Natsu and Gajeel reached a tacit understanding, making Yuuki nod as the two Dragon Slayers became much more coordinated than before.
The two Dragon Slayers began counterattacking, forcing Yuuki onto the defensive. This caused an uproar among their guildmates as they watched Natsu and Gajeel finally begin pushing Yuuki back.
Gajeel transformed his arms into lances and struck at Yuuki, knocking him backward. Natsu immediately seized the opportunity and launched a powerful attack at Yuuki.
Both of Natsu's hands ignited with flames as he brought them together. He then jumped and lunged towards Yuuki.
"Fire Dragon's Brilliant Flame!"
KABOOM!
Yuuki was engulfed in a sea of flames as Natsu unleashed the attack.
"Amazing! They actually made a comeback!" Lucy exclaimed happily, amazed to see Natsu and Gajeel successfully land their attacks.
"Natsu! I knew you could do it!" Happy cheered, jumping for joy.
"This feels weird..." Gray said in doubt.
"What do you mean, Gray?" Lucy asked in confusion.
However, it was Erza who answered her question.
"Natsu and Gajeel's attacks were too smooth. It's almost as if Yuuki was simply testing their strength." Erza said with a serious expression.
"...No way. Even after all of that?" Lucy couldn't believe what she was hearing, but judging by the expressions on Erza and Gray's faces, it seemed to be true.
Back to the battle.
The burning flames on the ground were suddenly extinguished, and Yuuki emerged without even a speck of dirt on his clothes. He was completely unscathed, causing everyone's jaws to drop.
Sweat began to bead on Gajeel's face as he let out a stiff laugh. "Seriously..."
Natsu also gulped, but the fighting spirit in his eyes never faded.
"Gajeel!"
"I know!"
The two immediately understood each other, gathering a tremendous amount of magic power in their mouths before unleashing it toward Yuuki.
"Roar of the Fire Dragon!"
"Roar of the Iron Dragon!"
A huge wave of fire and a black tornado erupted from their mouths, hurtling toward Yuuki, making him raise an eyebrow.
"Interesting. Then I should use mine as well." Yuuki said.
With that, Yuuki inhaled deeply as a surge of magic power gathered in his mouth before unleashing them with a thunderous boom.
"Roar of the Sky Dragon!"
The combined power of the Fire Dragon and Iron Dragon fused together, creating an even more powerful attack. When it collided with Yuuki's attack, the two opposing forces clashed in the middle, bringing each other to a standstill.
However, it quickly became clear that Yuuki's magic power was far greater than Natsu and Gajeel's combined. Within a few seconds, their combined roar was completely overwhelmed and drowned by Yuuki's roar.
"Argh!" ×2
Natsu and Gajeel were sent flying by Yuuki's attack, nearly being knocked out of the fight.
"Oh? You two still want to continue?" Yuuki asked.
Natsu and Gajeel slowly got back to their feet and looked at Yuuki with resolute eyes.
"The fight isn't over yet!" they declared.
"You guys should remember that this is only a spar, right?" Yuuki's lips twitched as he looked at the two battle maniacs who seemingly didn't know when to give up.
"Hehe, this is just a scratch." Gajeel laughed stiffly, though the wounds covering his body made it obvious that he was far from fine.
"Gajeel!" Seeing his current condition, Levy could barely hold herself back from rushing over to aid Gajeel.
"Is that all you got? I'm still standing!" Natsu grinned fiercely, ignoring the pain coursing through his battered body.
"Natsu!"
Lucy, Gray, Happy, and the others were also worried. They didn't have to fight this hard, right?
Seeing that neither of them would give up anytime soon, Yuuki shook his head and decided to end the spar.
"If that is your wish, then I shall grant it. However, at this point, you should use everything you have and do your best to stay alive."
Natsu, Gajeel, and the rest of the Fairy Tail members didn't understand what Yuuki meant. They only watched as he suddenly leapt into the sky without the aid of an Exceed like Happy or Charles.
"He can fly?!"
Everyone exclaimed in surprise. It was rare to see someone capable of flying through the use of magic.
Yet they were also curious about what Yuuki was trying to do. They watched as he extended his hands toward the sky, causing the entire sky to darken as they heard him begin to chant...
"Gather, winds of the boundless sky.
Let the heavens tremble beneath your might.
Clouds shall part, the firmament shall descend,
Makarov and the more powerful mages of Fairy Tail widened their eyes in horror as they realized what Yuuki was about to do.
"Shit! Does Yuuki want to kill everyone here?!" Makarov couldn't help but curse.
Gildarts also had cold sweat dripping down his face as he looked up. He then let out a dry laugh. "Ahahaha... youngsters these days really don't know the meaning of restraint."
Makarov didn't reply to his words and immediately warned the rest of Fairy Tail.
"Everyone, run! Yuuki is about to unleash a powerful Grand Magic Spell!"
The members of Fairy Tail were startled at first upon hearing their master's warning, but their faces immediately turned pale as they also started fleeing for their lives.
"Isn't it just a spar? Why did it turn dangerous?!" Jet cried out.
"Ask Yuuki that! This is completely overboard! W-Wait, I can't run that fast..." Droy said worriedly as he can't run really fast because of hi sfat body.
But, just as they were about to escape, a pink cube-shaped barrier suddenly enclosed them.
Then, Yuuki's voice echoed inside their heads. "Don't worry, as long as you remain inside, you won't be hurt."
Hearing this, everyone finally heaved a sigh of relief. They were also curious about the magical barrier surrounding them, as they could feel an incredibly powerful force from it.
However, they didn't have time to dwell on it, as Yuuki finally finished his chant.
"and from above, let ruin fall upon the earth.
May nothing remain untouched beneath the wrath of heaven."
Yuuki looked down from the sky and said with a plain voice.
"Sky Fall."
Natsu, Gajeel, and the rest of Fairy Tail watched as a tear suddenly ripped open in the sky. Yet, the next second, everything was engulfed in blinding white light.
BOOOOOOM!