"Ah, so this is your famous 'Giant' magic, huh?" Said Naruto giving the old master an appreciative look. The magic he used is very similar to Choji's partial expansion and Naruto dodged Makarov's attack with ease.
Any Giant's strength is useful only if they come into contact with the target and Naruto used his flexible and fast movement to dodge all Makarov's attacks.
All the old man's attacks were destroying the trees and rocks around him as he was trying his best to catch Naruto with the pressure they were creating.
"Light Style: Light Arrow," said Naruto as arrows of light started bombarding Makarov. In response, the old man increased his form even more, now standing 30 feet tall.
"Your arrows don't hurt me now, Naruto," he said as all the arrows did was tingle him a bit because of his strong skin.
"Unison Raid: Great Wind Annihilation," said Naruto, charging fire and wind at the same time, mixing the wind style breakthrough with great fire annihilation.
The result was a very large fire twister that sped at high speeds at high temperatures toward the surprised giant.
'A solo unison raid? Is that even possible?' Thought Makarov as he knew how complicated unison raids are. But the incoming twister didn't give him much time to think and he responded.
Though he knew the combined attack can't damage him, he decided to entertain the blonde and used one of the defences he had.
"Defense Seal," he called, making a small magical seal with his hand gestures, which started floating around him and formed a small magical dome, taking the combined attack. Though it was a strong attack, it couldn't penetrate the magical shield he made and evaporated after a few seconds.
"That's a great shield, gramps. I didn't know you knew Rune magic," said Naruto as he sat on Makarov's shoulders looking at the shield with an appreciative eye.
"Yes, it is. It is a precursor to one of the most powerful defence magic I have," explained Makarov with a smile. He sensed Naruto's arrival just before he landed.
"Well, I'm excited to learn more," said Naruto as he vanished and appeared far from Makarov, a big golden bow forming in his hand.
"My arrows didn't hurt you, let's see if my Giant Arrows hurt you," said Naruto as he released Giant Arrows towards Makarov at high speeds.
In seconds, hundreds of arrows started hitting the grown giant and instead of tingling, they started to sting and the pain increased from there.
In response, he decided to grow more and reached a colossal height of 100 feet directly from 30 feet as he understood Naruto's attack severity.
"Light Body," said Naruto and his body was engulfed in orange light. He was glowing brightly and the pressure in the area started to increase.
Even at this height, Makarov felt the tingling sensation of magic. He saw the light dim in the area as if it was being sucked by the blonde in the middle.
It reminded him of Laxus's lightning body, but the sensation is even more powerful and he can feel the strength of it from his height.
A figure rose from the middle of the light. It is Naruto, but with a small orange layer to his skin and he started to rise high into the air and soon reached his height.
"Things look small from here, huh," he asked the old man to which he nodded. Makarov tried to hit him and an increase in height not only increased his strength but also his speed.
From Naruto's understanding, Makarov's speed increased at least 5 times and he might be holding back even. But due to the increased speed, his Light Armour gave him, he did get it.
"Fire Blaze," called Makarov, throwing large fireballs at Naruto. The fireballs are scorching hot and reached Naruto in seconds.
"Fire Style: Fire Storm Jutsu," called Naruto, countering Makarov's fire with his own. The 2 fire attacks collided and fought for superiority. In the end, Makarov's Giant strength nullified Naruto's potent Chakra-magic and they soon dispersed.
"A strong fire user, are you?" Asked Makarov. l curiously. This spar taught him so many new things about Naruto. His potent Light Magic, speed and now Fire and the solo Unison Raid he did at the beginning. Things he didn't know from his talks with the blonde.
Now he wanted to do these more often and with his other children as well. It feels good and also keeps him in a battle-ready shape. Anything can happen at moment. Though they are in peaceful times.
'Hmm, that's a good idea.' Thought Makarov, but Naruto isn't idle all this time and a screeching blue ball was upon him when he came back to his senses.