As soon as Ning Xi appeared, the housekeepers and waiters at the gate of the palace wanted to surround them, but the old prince snorted coldly, and the majesty of his whole body stopped them.

After entering the palace, tea was immediately served for the three of them in spring and autumn.

The old prince took a sip from the teacup, "Stinky boy, I heard that you can refine a war beast that can be upgraded now?" ”

Ning Xi didn't hide it, "Well, it can indeed be refined, but it's not so easy to upgrade!" ”

She didn't go to the Ministry of Industry in the past few days, and she was originally going to visit the old prince tomorrow, but who knew that the other party would come to the door in a hurry today.

"It's good to be able to upgrade, which even the old man has never heard of."

"It's normal if it's not easy to upgrade, if it's too easy, the high-level war beast won't become a cabbage." When the old prince was young, he also thought about whether the war beast could be upgraded, but after studying it for many years, he found nothing.

However, he was not ready to ask Ning Xi for refining methods, each war beast master had their own secrets and refining methods, and if they were disrespectful.

"I also accidentally discovered that the war beast can be upgraded after adding several materials to refine parts."

"After the energy in the war beast has accumulated to a certain degree, it can be successfully upgraded by simply refining the same parts that are more advanced and replaced."

"Have you ever tried it? Has the upgrade been successful? The old prince asked Ning Xi curiously.

Ning Xi nodded and said, "The war beasts I refined for Fei Xu were actually all Yellow Rank Junior at the beginning, and then they became Yellow Rank Advanced War Beasts after they were upgraded. ”

For a Xuan Master who has a war beast, the only way to upgrade a war beast is to devour materials and spirit jade, but for Ning Xi, it is very easy, as long as the power of the material is decomposed with a special ability and injected into the war beast, and then the parts of the war beast can be upgraded.

The most important thing is to upgrade from a low-level war beast to a high-level war beast, which saves half the materials compared to directly refining a high-level war beast, that is, it takes a little more time and energy.

The old prince pondered for a moment, and his eyes lit up a little and asked, "Since you have upgraded from a low-level war beast to a high-level war beast every time, is there any merit of such a war beast?" ”

Ning Xi replied with a smile: "There are two advantages, one is that it can save more refining materials; Another point is that the fit between the war beast and the Xuan Master that can be upgraded will be higher and higher, and the war beast will integrate the characteristics of the master's physical strength, the depth of divine consciousness and the strength of the Xuan Power to optimize, and gradually improve the advantages to make up for the shortcomings. ”

This is also the characteristic of super mechas, Ning Xi has always pursued perfection in refining mechas, so the war beasts from her hands will definitely not appear defective.

After listening to Ning Xi's words, the old prince's eyes brightened, "Okay, great!" The upgraded war beast still has such a function, which is simply against the sky! ”

"Old Lord, if you are interested, you can participate in refining this war beast with me." Ning Xi had long been eyeing the old prince, Yan Xiao, and Ye Jun.

How can you establish a fiefdom without a war beast master? Ning Xi used to only accept high-end customization, and he would not prepare to refine any war beasts in the future.

The Ning family army has 100,000 soldiers, if all of them are replaced by this kind of war beast, Ning Xi will have to die of exhaustion if he refines alone.

After this period of observation, Ning Xi found that the character of the three old princes could still be trusted, so he deliberately dug a pit to let the three of them jump.