Shirong looked at what had just happened with wide eyes. Right in front of him the group of trees that were there, were now all broken. Just that was not the reason why he was shocked though, the reason he was shocked was because he had not attacked the trees at all.

In fact, he was about ten meters away from the tree and there was no chance he would have hit it. But here he was standing with the spear that had become over ten meters long.

"What the…" Shirong muttered as he looked at the spear in his hands.

While the weight of the spear was still the same, it had suddenly increased in size. It had prodded him to give it a bit of spirit qi, and that was what he had done. After all, it was an Immortal weapon, it wouldn't make sense if it didn't use some qi to work.

Shirong moved his hand, and the spear moved with it.

He thought for a bit and then tried to communicate with the spear through the connection.

~Swoosh~

In the next instant, the spear started shrinking at a rapid speed.

~Deng~

A couple of seconds later it was back to its previous size.

"This is… unusually… but good!" Shirong stated.

"Hahaha! This is merely the icing that I prepared for you, you still got the entire cake left." Lin Wu said in his mind.

Shirong stood in the stance again, but this time of stabbing out, he waved the spear around.

~Woosh~

~Crash~

~Shatter~

This time the spear extended as well, but it was not rigid like before. It was now acting like a whip instead. The whip like spear hit the other trees that were to the side and broke them apart. Shirong willed it again, and the spear returned to its normal size.

"This is simply amazing, I've never seen a weapon that can work like this before," Shirong said, feeling amazed.

Meanwhile, Lin Wu was also thinking of a few things in his mind while he was being waved around.

"Hmm, I barely felt that… Seems like my defenses increased by quite a lot after reaching the Mid stage of the core condensation realm." Lin Wu realized.

Lin Wu had been prepared to bear some damage ever since he had decided to become a spear, but now that his defense had increased so much, he felt like he could bear it. Another thing that Lin Wu was happy about was that the Back door function was working very nicely.

Right now, what Lin Wu had used was nothing but his innate skill: Cellular manipulation. That was how he was able to shrink and extend. Another good thing that happened was that he had a zero consumption of his spirit qi while he was using the innate skill, rather he was actually gaining it.

What Lin Wu was doing was actually using the spirit qi provided by Shirong to use the skills. Basically, he would demand the amount that was used by the innate skill from Shirong, who would give it to him without a second thought.

Also, due to the spirit qi steal property of the Back door function, not only was Lin Wu using Shirong's spirit qi, he was also absorbing a small amount in extra from it when it was given to him. This was the more Shirong used him, the more spirit qi he would actually obtain.

Now that Shirong knew what the spear could do, he became excited at all the possibilities. He started swinging the spear around and instructed it with his mind, and it acted as he wanted it to. It extended, contracted, wrapped, coiled, crushed, pierced and whipped.

He held it in the middle and spun it in the air. This time, both ends of the spear extended and became like whips. The trees around him were only getting more and more damaged, as he brandished the 'Weapon'.

After fifteen minutes of testing it around, Lin Wu was getting a bit bored.

"Let's show him another move… Hehe," Lin Wu muttered in his mind.

Shirong was just about to swing the spear again, when he felt a vague thought appearing in his mind. He couldn't tell what it exactly meant, but it was asking him for more spirit qi. Not thinking much about it, he poured more spirit qi into it.

Then it happened.

~Shing~

The spear blade changed shape and became covered in long spikes that extend from its surface.

"Now it's a mace?" Shirong uttered with surprise.

The spear in his hand now looked like a morning star mace. Shirong also felt like the balance of the spear was shifting. It became more heavier on the spiked end. Now he needed to hold it with both of his hands to wield it properly.

~HAA!!~

Shirong lifted it up high and slammed it into the ground. He felt a wave of energy passing through the mace and transfer to the ground.

~Crack~

~Split~

The ground in front of him split apart and an inch wide long crack appeared. The crack extended for a meter but was still quite deep.

Shirong was impressed by this, and even more ideas appeared in his mind.

"Hahaha! How did you like my new technique!" Lin Wu uttered in his mind with jubilation.

This was a move that Lin Wu had devised after thinking for quite a bit. What he did in this was he would activate qi amplification and then concentrate the spirit qi in his 'head', which was the top of the Mace. Then he would release it all at once when he hit something.

This was how he had made the deep crack, even in something like soil, which was not hard. It was now that an idea occurred to Shirong.

"Wait, if it can change its form like this then…" He muttered.

Shirong willed the mace to change back into a spear form and then stabbed it into a large rock that was nearby. Then he willed it to change form, but not completely. It was a bit difficult for him and he felt that it was taking up quite a bit of his spirit qi, but he was still willing to try it out.

A dull sound came from the rock, but Shirong knew it had worked. He lifted the spear with both his hands and the rock was lifted as well