Kel'thugad saw Su Chen retreat to dodge, but he thought he was already timid, and immediately began to chant a spell.

The magic power that allowed this great lich, who had been a magister in his lifetime, to chant spells was naturally not far behind.

Soon a huge ice ball appeared in front of him, and with just a slight push, it quickly attacked Su Chen, and at the same time, a large amount of crystal and deadly ice crystals scattered from the ice ball in all directions, and there was almost nowhere to dodge in the entire hall, and the undead creatures that were originally controlled by Su Chen were soon all blasted into dry bones.

Su Chen could only turn on the anti-magic shield again to resist, but seeing that the army of undead under his control was lost, he couldn't help frowning, these undead were not just cannon fodder, they could also cause a lot of damage to Kel'thugad.

"I need to use the power of resurrecting the undead." Although Su Chen can use the skills of the death knight, he will only have some low-level skills at present, and there is no resurrection of the undead, so he cannot resurrect these undead immediately.

"Yes, then just turn on my second-level permissions, and you will have the power equivalent to a high-level death knight, and you can use all the skills of the death knight, and the duration is one minute." Zhi Brain responded immediately, obviously opening the second-level permission is much lower than the energy consumed by opening the third-level permission.

Su Chen immediately felt that his strength had been improved to a certain extent, but it seemed that the feeling of muscles in his body was also a little more numb.

With his current state, he can't bear it, let alone control too strong a force, and it is estimated that after opening the third-level authority, it will still be up to the brain to take over the control of this body.

However, although the increase in strength this time is not a lot of improvement, there is a lot of comprehension of the power of darkness, and what is even more surprising to him is that after his strength is increased, the rune on the frost sorrow also lights up!

At this moment, he could feel a strange power coming from the hilt of his sword.

"I guess I'm in the same state as Arthas, who became a Death Knight after the fall."

Su Chen thought secretly, and immediately plunged the frost sorrow in his hand into the ground under his feet.

"Get up...... It's ......"

Su Chen wanted to put on a dashing pose, but what stunned him was that when the power of darkness and the frost sorrow began to spread through the hall, not only did those broken bones begin to reassemble, but also the huge ice blocks around the frozen dragon bones also began to burst, and those huge dragon bones soon floated into the air one after another......

With the convergence of the power of darkness on those dragon bones, under the influence of the dark rules, a huge bone dragon is gradually taking shape.

"I'm ...... Accidentally brought Saffron back to life?! Looking at the frost dragon roaring silently in midair, the corners of Su Chen's mouth couldn't help twitching slightly.

With the power of his death knight, he naturally couldn't resurrect such a powerful frost dragon, and this power should be frost sorrow.

"Nope! It's mine! Kel'thugad immediately let out an angry roar, and a huge ice ball slammed into Su Chen.

But the newly formed Frost Dragon stretched its shattered bone wings forward, just in time to block the puck.

The mighty puck only made the hideous bone wings shake slightly.

"Yes, this frost dragon belongs to me now......" Su Chen's heart was happy, and the frost sorrow in his hand pointed forward, and the huge frost dragon immediately flew up.

"Damn it!" Kel'thugad roared angrily, but he had to give up his attack on Su Chen, and instead panicked to deal with the 'betrayal' of the frost dragon.

"Ice Dragon vs. Kel'thugad...... This battle must have been exciting. Su Chen sneered and retreated behind the frost dragon as he swallowed the water from a solar well into his mouth.

Since even Zhi Brain is worried that there will be a more powerful enemy, he must return his physical strength to peak state as soon as possible.

As the well water entered the throat, the originally cold and pale body of the lich instantly turned a fiery red, and the blood that was almost coagulated boiled in an instant. Su Chen had to grit his teeth to bear the painful feeling of intertwining ice and fire.

This kind of pain from within the body is the most tormenting, and he would rather be slashed a few times than before.

If it weren't for the presence of an intelligent brain that kept his soul clear, he suspected that he would faint from the pain.

Fortunately, this body, which can be valued by the Lich King, is indeed very adaptable, and the violent energy brought by the water of the sunwell quickly subsided, and the body gradually returned to the cold Lich body state.

The power provided by the Zhi Brain after opening the second-level authority still exists, and the pain that seemed to have been experienced for a long time just now is obviously only a few tens of seconds.

Seeing that the frost dragon in front of him was still fighting Kel'thugad, the ice dragon's resistance to ice magic seemed to be very high, so Kelthugad had to choose hand-to-hand combat, which he was not good at.

Su Chen hurriedly swung his sword and rushed forward, the power of the high-level death knight should last for a few seconds, the strength of this frost dragon was no worse than that of Kel'thugad, and in the case of two against one, it was the best time to deal with Kel'thugad.

When Frost Sorrow struck, the lich immediately began to panic, and almost all of its chains rolled up in an attempt to entangle the incomparably sharp sword.

"Rune Sword Dance!" Su Chen immediately seized the last few seconds of the enhanced state to activate another high-level skill of the Death Knight.

A Phantom Sword identical to Frostmourn's Sorrow immediately appeared behind the Lich and attacked.

"Lord Lich King! Your servant prays for your help! Kel'thugad suddenly shouted, but this time instead of chanting any magic spells, he went straight to the Lich King for help.

The crystal ball that had been guarded behind him instantly burst into a dazzling light.

"Arthas!" A low, angry voice rang out.

Although it was still the voice of Kel'thugad, the power was completely different, and more importantly, the power emanating from his body had greatly increased.

Even the Frost Dragon, which was spitting frost breath at it, stopped its attack and roared silently in the sky, seemingly in agony.

"Alert, attack power 700, still improving, recommended...... Run away! Zhi Brain's voice immediately exploded in Su Chen's mind.

"Is it Naozu?" Su Chen was slightly stunned, this was obviously the Lich King using some method to remotely control Kel'thugad's body, and greatly increased its strength, just like in the history of Warcraft, it increased the power of Arthas from a long distance.

"Can't you win with more advanced permissions?" Su Chen couldn't help but clench the frost sorrow in his hand, and secretly asked Zhi Brain.

"The opponent's strength is very strong, I need to open at least level five permissions to suppress his power, if you want to fight quickly, you need to open higher permissions, with your current body can't withstand that kind of battle, it will collapse instantly."

“……”