Qiushui had already mastered the Great Fireball Technique. On top of that, his proficiency in both Fire Style nature transformation and shape transformation had reached an advanced level. The fireball he spat from his mouth was like a small meteor, fully fifteen or sixteen meters in diameter. Wrapped in an astonishing wave of heat, it crashed onto the grass nearby, scorching the entire patch black in an instant. The pungent smell of burning grass and trees filled the air, and even the ground had begun to crack slightly from the heat.
"So big..." Uchiha Sasuke stared in shock.
Even back in the Uchiha Clan, he had never seen many people use the Great Fireball Technique on such a scale. And he remembered that the fireball Qiushui had used before wasn't this big. In other words, in just one short month, its size and power had increased by nearly a third.
"Although you train diligently, the way you train is wrong," Qiushui explained. "If you want to unleash jutsu more powerful than those of ordinary people, you have to master your own chakra first, followed by chakra nature transformation and shape transformation."
Chakra shape transformation and nature transformation were relatively advanced knowledge. The teachers at the academy were mostly Chunin, and even they weren't very proficient in either. Only after reaching Jonin could one claim to truly understand them.
In the anime, Uchiha Sasuke didn't learn how to master his chakra through Tree Climbing and Water Walking from Kakashi until after he graduated. As for chakra nature transformation and shape transformation, he only began learning about them a month before the Chunin Ninja Exams, when he started studying Chidori.
"Chakra nature transformation and shape transformation are still a long way off for you. Right now, you need to learn to control