The Lord of the Rings: Lords of Middle-earth.

"Roar!" Doss's clear dragon roar rang out. Although the dragon roar was childish and not majestic, no one dared to underestimate its power!
"Roar!" More than twenty dragons roared angrily, and all the creatures in the forest fled at the sound, for no foolish magical beast dared to stand in the way of the dragons.

"Ow!"

"Crack!" The earth dragon's powerful body snapped the ancient tree in half. The enraged dragons exhaled a white breath from their nostrils. Obeying the emperor's decree, they traversed towering mountains to avenge the orcs who dared to challenge the emperor.

"Awoo!" Dos flapped his wings, his elegant body gliding through the air, clearly having sensed the location of the Kingslayer.

"Roar!" With a long, drawn-out dragon roar, all the dragons raised their heads to look at Dos, and then, to the sound of his roar, they rushed towards a certain place.

"Roar!" The scorching dragon breath swept across the land, and a group of orcs hiding in a cave were burned and their flesh was torn open, and in the blink of an eye, they emitted a smell of burning corpses!
With a "bang!", the heavy dragon claw slammed down, its dragon power creating a dazzling afterimage as it crashed heavily into the cave entrance. As the rocks above the entrance scattered and crumbled, a thick plume of smoke rose. When the smoke dissipated, the original cave had collapsed.

"Roar!" The earth dragon roared to the sky, its surging dragon power scattering the surrounding trees in all directions.

……

Langdo and Dogger were unaware that the golden dragon that Roland had released had gathered a group of dragons from the Misty Mountains and was marching towards the Orc Kingdom. Their worst fears had come true; the golden dragon's terrifying appeal had united the previously independent dragon species, and a massacre was about to unfold!
Doss led his newly sworn followers on a grand march towards their goal, ruthlessly destroying any orc settlements they encountered along the way! All the orcs were mercilessly slaughtered! The claws of the earth dragons were stained a deep purple with orc blood!
"Sniff, sniff, sniff!" Dos strained to sniff the air. He would never forget or misremember the stench of the two orcs who had killed his knights!

"Roar~" Doss roared at the dragons with his neck raised, then landed in front of a dark cave entrance, from which came a strong smell of orcish body odor.

Doss frowned, his dragon eyes filled with human-like disgust and loathing, after all, those damned orcs had killed his knight!
"..." He turned his head to look at the fire-type flying dragon beside him.

The fire-type dragon obediently came to the cave entrance and suddenly unleashed a burst of dragon breath. The surging dragon breath flowed deep into the underground through the passage, and a mournful howl faintly echoed from the cave.

"Roar..." Doss, who was roaring and howling, suddenly felt as if he had been choked, because he discovered that his Dragon Rider Contract had reacted again! Their souls were linked together once more!
"Awooo?" Doss landed on the ground and wagged his tail. He was clearly in a good mood, even though he didn't know why Roland had suddenly come back to life. He even looked at the gates of the orc kingdom with a clear and handsome face!
However, this did not hinder Doss's bloody revenge plan. In any case, his knight had indeed died once! Although he did not know why the knight had suddenly come back to life, it did not conflict with Doss's revenge against the orcs!
Doss, yearning to return to his knight's side, was overcome with hatred and suppressed his longing for Roland! He wanted to bring the corpses of those sinners to his knight as a gift of rebirth! Their remains were the best present!

"Roar!" A tender dragon's roar rang out, signifying the official start of a golden dragon's revenge!
"Roar!" Dragon breaths of various colors surged into the tunnel, ravaging the grotto and causing it to crack inch by inch. The crumbling tunnel was filled with the charred remains and debris of orcs. "Roar!" After attacking for half a day without success, Dos and his men realized that these orcs were determined to be cowards! The Blade-Winged Earth Dragon roared and then crashed into the tunnel.

With a sickening crunch, the earth dragon's massive body forced its way in! A yellowish-brown dragon energy emanated from its body, compacting, reinforcing, and expanding the passage!

Soon, with the Bladewing Earth Dragon clearing the way, the passage became wide enough for an adult dragon to enter!

"Whoosh!" As Dos entered the underground world, what greeted his eyes was the dazzling dragon breath of the Blade-Winged Earth Dragon, relentlessly annihilating the orcs burrowing in and out of the various caves! Orcs hit by the dragon breath would quickly petrify and then disintegrate...

"Crack!" One after another, dragons and wyverns stepped over the remains of the orcs and entered the underground kingdom! This orc kingdom, located in the Misty Mountains, had finally faced a life-or-death moment!
"Golden Dragon!" Langdo's eyes narrowed. It had spotted it when Dos and the others attacked, but it decisively retreated deep underground. In its view, the dragon whose knight it had killed would at most vent its anger on the surface and then leave on its own. There was no need to make an enemy of it. Losing would mean losing its life, and winning would mean more deaths! It was a losing proposition either way, and it wasn't stupid!

However, Langdo never expected that the powerful Golden Dragon bloodline would gather a group of dragons so quickly! And it seemed they were destined to be at odds with them to the death… Hoping for the best, the four sixth-tier orcs from the Orc Kingdom didn't venture out to provoke the dragons' wrath, but reality slapped them hard in the face! When Dos led the dragons underground, all the orcs realized that this dragon had its sights set on them! A fight to the death!

"Slay the dragon!" The grief-stricken orcs roared as they charged towards the dragons that had entered their kingdom! This was the first time their homeland had been invaded in the Misty Mountains! (Thorin and his companions had killed the Goblin King!)

The desperate orcs wouldn't sit idly by and wait for their doom. The four sixth-tier professionals also activated their trump cards, because if they held back any longer, they would really be taking it to their graves!
"Roar!" Dos roared angrily at Langdo and Doctor, the murderous intent in his eyes and the furious dragon roar letting everyone know that he was coming for them!

"What on earth did you do? Why did you provoke a dragon king!" a sixth-tier orc, his entire body engulfed in flames, roared angrily.

"Damn it! We'll all die with you!" another orc said while fending off the attacks of the three dragons.

The pressure brought by more than twenty dragons of various species was unprecedented. Although none of them could compare to the combat power of a sixth-tier dragon, if you convert it to twenty or so peak fifth-tier or fourth-tier enhanced professionals ganging up on four sixth-tier dragons, you'll understand. Moreover, dragons themselves have natural advantages! Powerful dragons can often defeat other races of higher tiers, and obviously, orcs are no exception!
In an instant, various dragon languages, magic, dragon breaths, and orc skills flashed and scattered throughout the orc kingdom's dungeons. Amidst the flying dust, large areas of underground structures collapsed. The thick-skinned dragons often traded blows with the orcs' sixth-tier attacks, experiencing once again the fear of being dominated by Roland's desperate fighting style...

Moreover, due to the combined attack of the dragons, although the orcs had four sixth-tier combatants, they were unable to break the stalemate because they were divided on the battlefield and could not provide support.