Chapter 517 Revenge Completed

"Human, if you want to live, use all the trump cards you are hiding."

The Ancient White Dragon Emperor was excited to see that Leo was not only unharmed but all his injuries were healed from the attacks of the Legend Grade City Leaders under him.

Therefore, he asked Leo to use all the trump cards while fighting him because the Dragon Emperor also wanted to have an all-out fight with someone before the Inter-World Competition starts.

"Of course."

If it were before, Leo would not have had enough confidence to fight the Dragon Emperor; however, with the changes in the [Nether Rage Booster] and along with the other trump cards under his sleeve, Leo was confident in defeating the [World Emperor].

"If I start first, you might not have the chance to use all your trump cards. Why don't you attack me first?"

In the Dragon Emperor's eyes, Leo didn't have the ability to defeat him, hence, he gave the chance for Leo to attack him first.

"However, before I fight you, I have to pay back what I received, right?"

As for Leo, he could sense that the Ancient White Dragon Emperor was looking down on him; however, he didn't mind it.

In fact, Leo felt it was an advantage for him by being looked down on by his opponent.

Nevertheless, he didn't attack the [World Emperor] directly, instead, his target was the city leaders around the [World Emperor].

'Activate the [Nether Rage Booster].'

Without any hesitation, Leo activated his [Nether Rage Booster] and selected, 'I will select the [Call of the Lightning].'

'Ding,

The host's special talent [Call of the Lightning] will be temporarily boosted to the Level 9 Legend Rank for two minutes.

Soon, Leo received the system notification and he revealed an evil smile on his face.

[Call of the Lightning - Lightning Rain]

Even though Leo could use the ultimate attack, he didn't use it at the beginning itself because once he uses it, he can't use it for the whole two minutes.

Moreover, his target was not the Ancient White Dragon Emperor; instead, he wanted to kill all the city leaders around the [World Emperor].

'Once I kill them all, I can fight the [World Emperor] one on one without any external disturbance.'

This was the thought in Leo's head as he started his attack.

'Huh?'

The Ancient White Dragon frowned when he heard Leo's words; however, before he could reply, he saw Leo's body surrounded by sparks of lightning.

'Swoosh'

'Boom'

In the next second, hundreds of lightning flashes descended from the sky and landed on all the dragons except for the Ancient White Dragon Emperor.

Among the 90 plus city leaders, more than half of them were not expecting Leo to attack them so suddenly which led them to their deaths.

Some city leaders tried to block the incoming lightning flashes; however, their attacks were not powerful enough to block the incoming lightning flashes.

As for the very few city leaders, who had the strength of level 9 Legend Grade, they activated their bloodlines and other talents but they were unable to block more than two lightning flashes before falling to the ground.

'Thanks to the [Legendary Killer] and the [Herculean Domain], these legend-grade dragons will face a suppression of 40 percent in their battle prowess.'

Currently, Leo's strength is at Level 9 Legend Grade and even if he was facing a Level 9 Legend Grade Dragons, Leo could casually kill them with his [Call of the Lightning].

Hence, even though he just used a basic attack of the [Call of the Lightning], Leo was able to kill them with ease.

'What the….'

The Ancient White Dragon Emperor was thoroughly shocked when he saw that Leo was hiding such a powerful trump card all along.

Even though he knew that Leo was hiding some trump cards, the [World Emperor] was not expecting such a powerful trump card that could instantly kill nearly 100 legend-grade dragons around him.

'Ding,

The host killed 100 city leaders of the Grade 2 Void Dragon World.

'Ding,

Provide at least 10 corpses of the city leaders to the Ancient Beast in the [Nether Ice Prison] to complete the mission [Ancient Beast's Request].

Note: Mission Progress: 1 / 9

'Ding,

The host will get additional rewards for providing more than the required number of corpses to the Ancient Beast.

[Speical Bloodline Clones]

Amidst the Ancient White Dragon's shock, Leo summoned more than 20 blood clones that rushed to collect the corpses.

'Now, I can peacefully focus on fighting this Ancient White Dragon Emperor.'

Leo's main goal was not to kill the [World Emperor]; instead, it was to complete the [Ancient Beast's Request] mission.

Since he could almost complete it, Leo heaved a sigh of relief as he thought he could focus on fighting the [World Emperor].

Of course, if the [World Emperor] was more powerful than he thought then Leo won't mind rushing into the [Nether Ice Prison] to submit the corpses before asking the Ancient Beast's help in killing the [World Emperor].

'Ding,

A new mission [Mythical Killer] has been generated.

As Leo was ready to attack the Ancient White Dragon Emperor, he received a system notification that made Leo nod his head in understanding.

'As I expected, this beast was at Mythical Grade.'

Leo could guess what the mission wants him to do and he already figured that the Ancient White Dragon was a Mythical Grade from the beginning.

Hence, he was not surprised much.

'Let's not waste time checking the mission details.'

Since Leo already guessed the mission details, he didn't bother to check because he was running out of time.

'Also, I only have one shot at taking down this beast during this [Boost].'

[Call of the Lightning - Lightning of Obliteration].

Since the Ancient White Dragon Emperor was a Mythical Grade Dragon, there was no need for Leo to hold back in his attacks anymore.

Hence, he used the most powerful attack he could use during his temporary boosted period.

'Rumble'

'Swoosh'

'Boom'

Following a loud rumbling sound, a purple-coloured lightning flash descended from the sky and landed on the Ancient White Dragon Emperor creating a huge explosion.