Outrageous! He became the Elf King at the beginning

Five thousand energy crystals.

Not too many, but not too few either.

His elven army can hunt for a whole day with ten ‘five thousand’.

But from another perspective, these energy crystals can train a full hundred elven archers or elven swordsmen, how can it be described as few?

"Using five thousand energy crystals to exchange for a king-level magic can save me at least two weeks of time..."

"It's worth it."

"It will enhance my own strength after all."

"When I become stronger, I can kill more monsters."

"Sooner or later, these energy crystals can be earned back."

Thinking of this, Lin Yi summoned an elf hunter who was guarding not far away and asked, "How long has the elf army been out hunting?"

The elf hunter respectfully said, "Your Majesty, it has been nearly two hours."

"That should be enough!"

Lin Yi nodded and ordered, "Go and bring back the energy crystals harvested by the elf army. I can use them!"

"Yes, Your Majesty the Elf King!"

The elf hunter turned over and rode on the swift leopard beside her, quickly running towards the ruins outside the square.

There were more than a dozen elf hunters who went with her.

They dispersed to various directions of the ruins.

In less than half an hour, a group of elf hunters returned one after another, handing one leather package full of energy crystals to Lin Yi.

After counting, the number of energy crystals totaled more than 23,000.

Lin Yi was somewhat surprised to have such a large harvest in two hours.

"Although the size of the Elf Corps has skyrocketed to more than 2,000..."

"But so many energy crystals can only be produced by killing tens of thousands of monsters."

"Could it be that the number of monsters in the ruins is also skyrocketing?"

During the day, there are not many undead creatures in the wild.

Because there are no power bases built by undead creatures in the inner city ruins.

When you reach the outer city, you can also see a large number of undead creatures during the day. They appear near the bases of various forces and will no longer sleep underground.

"Report to Your Majesty."

An elf female hunter said: "Last night's war seems to have alarmed the rats living in the underground world. This morning, a large number of swamp giant rats appeared on the surface world."

"They appear among the ruins, and the number is extremely shocking."

"So that's it!"

Lin Yi suddenly realized.

It's normal for rats to appear.

The largest number of monsters in the entire Elf Ancient City Ruins is the Swamp Giant Rat, which is more numerous than the Vampire Mosquito.

About two months ago, with the help of the old tree's consciousness, he watched a live broadcast of a rat tide sweeping the ruins in the outer city, which was quite spectacular.

Lin Yi said to the Elf Huntress: "Tell them to set up some magic traps near the square to deal with the possible rat disaster."

It is not a bad thing to prepare for a rainy day.

It is to pay attention to cleaning up the surrounding ruins to prevent scattered monsters from touching the magic traps and causing the effect of cannons hitting mosquitoes.

"Yes, Your Majesty!"

The Elf Huntress obeyed respectfully.

After she retreated, Lin Yi continued to sit cross-legged under the Tree of Life.

"System, consume energy crystals and learn the Fire Dragon Roar!"

The Fire Dragon Roar is the king-level magic recorded in the magic book.

It is a magic skill of group attack type.

[Received] - System reply.

Money makes things easier.

As soon as the system received the money, it immediately instilled all the magical mysteries of [Fire Dragon Roar] into Lin Yi's sea of ​​consciousness, just as simple and direct as data transmission.

Lin Yi didn't need to do anything, just wait.

About a minute later, the transmission was over.

——[Congratulations host, you have perfectly mastered the magic skill Fire Dragon Roar. 】

Lin Yi immediately calmed down and recalled the magical mysteries of Fire Dragon Roar in his mind.

Soon, a giant dragon burning with hot flames appeared in his mind.

The fire dragon was huge, with four legs, wings, a bloated belly, and a thick and long dragon tail.

It looked like a lizard with wings.

Under Lin Yi's control, the fire dragon suddenly collapsed into countless magic runes, and then reunited to become an extremely majestic fire dragon.

This is the perfect control of magic.

He can use all the magic runes that make up the Fire Dragon Roar as if they were his arms.

As long as those magic runes are connected in series, no matter what form it eventually becomes, it is still the roar of a fire dragon, and its power will not be reduced at all.

After all, it is only the form that has changed.

The magic runes in it have not been changed.

Lin Yi then went to the ruins of the ruins outside the square to test it.

He waved the magic wand in his hand, and a fire dragon flew out immediately. It suddenly grew in size in mid-air, and in the blink of an eye it grew to more than 20 meters.

The huge fire dragon flew straight to the ruins of a building hundreds of meters away.

Wherever it passed, countless sparks fell.

It ignited a flame path several meters wide.

At the target location, the fire dragon crashed into the ruins of the building, accompanied by a huge roar, and the hot flames surged around, turning the area within a radius of 200 meters into a sea of ​​fire.

After a long time, the sea of ​​fire extinguished.

All the building ruins within the range were burned to ashes, and even some iron objects were burned to melt.

In addition, a large pit with a diameter of nearly 100 meters was left in the center.

"It is indeed a king-level magic, it is really powerful!"

Lin Yi was happy.

The magical power of the fire dragon's roar exceeded his expectations.

Moreover, Fire Dragon's Roar is a group attack type of magic, and its damage range is ridiculously large.

Once put on the battlefield, the effect will definitely be amazing.

"In addition, the fire dragon's roar does not consume much magic power."

Lin Yi didn't know if it was because he was a sun elf, or if it was the same as all other magicians. In short, with the magic power in his body, it would not be a problem to cast twenty fire dragon roars in a row.

Looking at the destruction caused by the roar of the fire dragon in the distance, Lin Yi felt increasingly satisfied.

"This is a qualified magician!"

"Otherwise, how can it be called a battlefield fort?"

…

Return to the territory.

Lin Yi glanced at the remaining energy crystals.

After learning the magic fire dragon roar, he still had more than 18,000 energy crystals left.

He did not immediately go to train the elf troops, but checked the level information of each building in the territory.

Tree of Life, advanced level, requires 100,000 energy crystals to upgrade.

Ancient War Tree, intermediate level, requires 50,000 energy crystals to upgrade.

Magic Fountain, low level, requires a thousand energy crystals to upgrade.

The God-given Palace is low-level and requires 10,000 energy crystals to upgrade.

"The Tree of Life and the Ancient Tree of War are the first to be eliminated."

"The Palace of God's Gift is also excluded. After upgrading, there is no money to strengthen the troops."

"Then upgrade the magic spring."

"The higher the level of the magic spring, the purer the condensed fairy spring water will be and the better the effect will be. When it reaches the top level, it can also condense the holy water of life, and then resurrect the body of the old tree!"

Lin Yi then recruited a group of elf huntresses who stayed in the territory.

Let them make barrels.

Finally, drain the elven spring water in the magic spring.

After doing all this, Lin Yi consumed a thousand energy crystals and upgraded the magic spring to the intermediate level.

After the upgrade, the magic spring not only exudes a stronger breath of life and nature, but also expands several times in size and can carry more fairy spring water.

Looking at the ancient well, the spring water that had just been drained was full again.

"Exactly what I thought."

"It's a good thing we drained it in advance, otherwise it would have been wasted."

Lin Yi looked at the elf huntresses behind him and said, "Keep pumping."

"As you command, His Majesty the Elf King!"