Whoosh, whoosh, whoosh-
Arrows or bone spears pierced the air, emitting a sharp hum as they flew, accurately hitting flying monsters trying to leap over the city wall. They fell like dumplings, crashing to the ground and into the monster tide pouring in from afar.
Occasionally, a monster in flight would collide with a rushing monster, scrambling into a ball, either avoided by the approaching monsters or directly trampled underfoot, buried in the charge of the monster crowd.
Explosions of fire were continuously detonated within a radius of two hundred meters from the city wall.
The explosions were relentless.
The few flying monsters that could get past the defenses and reach the city wall were taken care of by Dead Bone, and Lu Liu's arrow tower and thunder magnetic coil tower, precisely killed on the spot.
The monsters in the tide usually weren't high level. Much like the steep decrease of third-order and fourth-order players, most monsters were just apprentice level, ordinary level, or elite level.
However, there were just too many of them.
Even with territorial advantage, how many ordinary-level monsters could an elite-level Skeleton War General kill?
And this is given the assumption that they were lining up to be slaughtered.
But more often than not, the ratio of monsters to human troops was far more than a few dozen to one.
Just like in Tianyuan Territory, there were currently only 1234 professional soldiers and 269 elite-level soldiers facing tens of thousands, or even hundreds of thousands of monsters.
These monsters were not lambs to the slaughter.
They were not like a wave of zombies all squeezed together, able to be wiped out by a single fire technique like 'Scorching Sun'. They were running fast, able to avoid obstacles like trees and rocks, and even able to dodge arrows and fireballs shot from afar.
They lacked intelligence, but their combat instincts were as strong as those of the human soldiers. From the moment of their birth, they were formidable.
The higher the monster's tier, the stronger its combat instincts.
In Tianyuan Territory, there are several great generals in command. Any one of them could sweep through the enemy ranks and annihilate countless monsters. But Mu Yuan cannot rely solely on the power of his generals. He must use every advantage so that when the major enemies appear, his generals wouldn't be too exhausted to react.
Besides, there were also wisdom monsters lurking in the tides.
They weren't fools who would just charge at the city walls. They were capable of observing, waiting, and more importantly, launching surprise attacks and assassinations on the leaders of human territories.
These were the 'strategies' summarized by the predecessors.
There had been newcomers who relied on their powerful generals to storm into the monster tide, smashing through and killing countless monsters.
But these 'publized information', generals who had been being observed by the monsters for a long time, could easily become the target of a wisdom monster's surprise attack.
Therefore, the number of great generals and heroes who died in battle was not small.
Mu Yuan thought to himself that even though his Dead Bone, Duo Lai, Lu Liu, and other generals were far stronger than the generals of other new lords, they couldn't be too ostentatious.
It wasn't that he didn't utilize the power of his generals.
He surely wouldn't ignore sweepers like Duo Lai. He just needed to be careful sending them into battle, leaving a little energy to exterminate the monsters.
Stability is the top priority.
Clusters of dazzling flame exploded in the distance, illuminating the dim sky.
That was Duo Lai, turned into a Flame Turret, steadily dealing damage. It wouldn't release a massive attack like 'Scorching Sun'. When fighting against an endless number of monsters, sustained damage was more crucial.
Duo Lai yawned and only launched four fireballs per second, pummeling his surroundings.
But, when the remaining firelight dissipates, the sky darkened again.
It was noon at the moment. There was no red mist floating in the sky above Tianyuan Territory thanks to the protection of the territory. However, there was no light either. The whole sky was dark and oppressive, as if it were about to collapse and elicited a feeling of depression.
Adjacent to the Magic Furnace in the core of the territory was a building similar to a radar. This was the excellent-tier Miracle Building, the 'Magic Celestial Instrument'.
As one of the three parts of the epic structure, the Celestial Instrument's abilities aren't as prominent as the others, but it is quite formidable.
It possesses the ability for detection and distant observation.
At the moment, Mu Yuan was using the ultra-long-range observation ability of the Magic Celestial Instrument, observing the situation outside of his territory as if looking through the Lord's vision.
Using it wasn't as convenient as using the Lord's vision, but if deployed properly, he could extend his vision very far away.
What about the Battle Falcon's Vision? It wasn't very useful at the moment.
In the boundless monster tide, even a mighty Storm Falcon like Jun could only withstand it for a while before being torn apart. Even it couldn't stay in the tide for long.
"A36 Area, suspected wisdom monster spotted."
"D49 Area, suspected wisdom monster spotted."
Standing next to Mu Yuan was Isloa. She was also using the operation panel of the Magic Celestial Instrument to manually screen the surroundings.
In addition to this, Isloa undertook multiple observation tasks.
For this, she had no choice but to utilize two of her avatars, who were busily assisting her.
So far, they had identified 52 wisdom monsters.
He hadn't ordered his generals to take action for targeted elimination.
He was still preserving these wisdom monsters, but was using the Magic Celestial Instrument's power to mark these monsters as high-priority targets.
The birth of wisdom monsters was related to their level, but not entirely so.
Only a few Fourth-order Bosses possessed wisdom.
In recent days, most of the Fourth-order Bosses killed by Duo Lai and others did not have wisdom, probably due to their short span of existence.
In contrast, professional-level or elite-level monsters may possess high intelligence.