Duke was also stunned.
He never expected that Kael'thas, at his 'full power', could create such an exaggerated, insanely destructive firewall.
No, this was no longer a firewall. Because this kind of moving firewall should be called a [Flame Wave].
Typically, earth mages cannot cast Flame Wave. Sky mages might be able to create a short-lived Flame Wave about twenty meters wide.
Duke calculated his own limit and estimated that he could not handle a Flame Wave wider than two hundred meters.
Indeed, Morningstar mages can act as a small nuclear reactor to produce magic power. But as the name suggests, that's only a starlight-level magic output.
Considering that Kael'thas is currently only a Moonlight mage, according to the system's estimate, it would be impressive if Kael'thas could create a Flame Wave five hundred meters wide.
Now it's a full two kilometers wide. Even if this is short-term magic, it's not hard to imagine that the magic power needed and the mental power required to control the magic from going berserk are astronomical. Without a bunch of top-tier epic magic equipment, it would be impossible to sustain.
Indeed, the wealth of the Sunstrider royal family, which has been inherited for nearly seven thousand years, is unimaginable to outsiders. Even a low-level item that they don't care about is a rare treasure that could cause a civil war among the mages of Dalaran.
Prince, let's be good friends!
Of course, Duke, who prides himself on being a reliable gentleman, would never covet Kael'thas. Well, he silently thought about the countless times he had raided Kael'thas's dungeon before crossing over, but that's another story.
The trolls below were in a bad situation.
No one would have thought that the Rune Stone array could be used this way.
The Rune Stones themselves can summon a huge wind and thunder tornado anywhere in Eversong Forest, killing all the creatures inside. Duke, however, took a different approach. Unable to gather the power of wind and thunder, he directly drew more power from the earth veins.
Depleted earth veins easily form large underground cavities.
There wouldn't have been a problem.
But not long ago, this place was ravaged by the orcs' massive war machines. Duke drained the earth veins again, indirectly causing the earth to lose its support, and under the system's calculations, it turned into a perfect trap.
Now, all Kael'thas had to do was force these trolls into the pit.
The raging flames swept across the entire battlefield. The flames caused the surrounding temperature to rise dramatically, and the air was greatly heated. Not to mention the sparks flying in the turbulence, such high-temperature air, even if inhaled into the lungs, would cause severe burns.
Once the sparks fell on any flammable material, they immediately ignited a raging fire. The fire, driven by Kael'thas, burned everything in its path.
Each troll was reminded of a distant memory. They found themselves just like their ancestors, being ruthlessly driven by the magic-wielding elves. Leaving the land they stood on, leaving their homes, step by step towards death and destruction.
The towering flames easily reminded them of the burned capital of the Amani Empire...
"Ah ah ah," the trolls let out terrified screams.
These screams were just like their ancestors, panicked and desperate.
"It can't be like this!" Zul'jin frantically urged his wind power, trying to use the wind to fight Kael'thas's flames.
At this moment, without Kael'thas's reminder, more elven powerhouses took action.
Star Augur Capernia added her own flames to Kael'thas's fire.
Sorilan, Kael'thas's chief Star Augur, did the same.
Not just them, more members of the Silvermoon Council joined the battle, driving the massive flame wave towards the trolls.
"Beep beep boop!" The flames scorched everything.
This surging wall of fire reminded the trolls of the distant Dark Age passed down by their ancestors, when a forest fire could wipe out a troll tribe.
Now, this fear was pressing into the hearts of every troll on the battlefield.
They kept retreating, nearly fifty thousand trolls were squeezed together along the deep ravine due to fear of the fire and the cliff.
All the trolls' hearts contracted in fear, and the terrified screams of their companions facing death deepened the chaos in the ranks.
Trolls began to be pushed into the deep earth fissures.
The unlucky one flailed his limbs in terror. Blood surged from all over his body, his vision went from full of bright light to pitch black in an instant. He unconsciously opened his mouth, letting the wind rush into his lungs as he fell. After falling for who knows how many seconds, he lost consciousness under a forceful impact that was indescribable.
"Ah ah ah," a shrill scream came from the deep darkness, the echoing sound made it impossible for them to judge how deep the fissure was.
Panic spread further.
The flame wave was getting closer, closer!
Some trolls rushed into the flame wave in desperation, trying to charge through the flame wave to vent their final rage at the elves. But after only a few steps, they were charred and turned into a lump of charcoal, falling in the flames.
More trolls, in their panic and shoving, were pushed into the deep ravine in groups.
On the city wall, countless high elves who stayed behind excitedly clutched their chests, their pale faces flushed with excitement. They stared at this scene, afraid to miss any detail.
This was the end of the detestable trolls!
This was the end of the trolls who slaughtered their comrades, their loved ones, who deserved to be killed a thousand times!
And at this moment, their great Prince Kael'thas Sunstrider avenged them!
They shouted slogans madly, too excited to contain themselves.
The flame wave was now being handled by many high elf powerhouses, and Kael'thas finally let go of his biggest burden. He summoned his phoenix mount 'Al', standing in the battlefield sky in an almost hovering posture. Unconsciously, he looked back and saw Duke standing on the city wall.
Duke was calm, his dark and deep eyes were like the endless starry sky, carrying a casual demeanor that could decide the life and death of millions of beings.
Duke calmly observed the entire battlefield, but gave Kael'thas an illusion, as if the whole Quel'Thalas was under Duke's control.
Surprisingly, Kael'thas didn't feel any terror or unease.
On the contrary, Kael'thas actually had a vague feeling that if he entrusted the country to Duke, the people might live better.
He dared not tell anyone about this feeling. Because this feeling is definitely not what a future ruler should have.
Kael'thas smiled and waved at Duke, but all the elves thought the prince was waving at them.
Immediately there was a cheer like a tsunami!