Uchiha Hiko first attacked with the Six Powers' Finger Pistol to draw Otsutsuki Kaguya's attention. Then, using the Six Powers' Shave, he flashed behind her and launched a surprise attack. Neither of the two successive feint-and-movement techniques required Chakra, allowing him to conceal his position from Otsutsuki Kaguya. Only when he finally struck was it Hiko's true killing blow.
When Hiko hit Otsutsuki Kaguya, he drove his powerful Chakra into the crown of her head, continuously damaging her body. The intense Chakra kept burning Otsutsuki Kaguya, steadily draining her strength and weakening her.
"Whew... whew!"
Hiko's own expenditure was no small matter. He had suffered quite a few heavy blows in the battle, and several bones had been broken. However, his physique was exceptionally tough, and with his incomparably abundant Chakra, he recovered extremely quickly. Still, his Chakra consumption could not keep up with his recovery speed. Though some of Hiko's injuries had healed, his strength remained severely depleted, and signs of fatigue were beginning to show.
"Ahhhhh!"
Otsutsuki Kaguya, who had been blasted away, was covered in injuries—large bruises, scrapes, cuts, and countless other wounds—making her look utterly miserable. Worse still, there was hardly any clothing left on her body. Several of Uchiha Hiko's attacks had carried the burning effect of infused Chakra. Whenever she failed to defend in time, her clothes would begin to burn away.
Injuries could still be hastened to heal, but clothing was inorganic matter. Otsutsuki Kaguya had not reached the level of creating all things—how could she possibly create it out of thin air?
The sight before her nearly drove her mad. Uchiha Hiko's bizarre and shameless tactics had infuriated her to the extreme. Even having several ribs broken by him had not filled her with as much hatred as this utterly humiliating damage.