Dungeon Lord In How To Train Your Dragon

A series of avalanches occurred in a large snow-covered mountain. The cause of these natural disasters was the series of explosions coming from a large stone room 12,000 feet below ground. 

In that very room, 12 robed men and women were surrounding a young blond man. The pair of blue wings that poked out of his back showed that he wasn't entirely human, unlike those surrounding him. 

The young man was trying to reach for a small glowing blue crystal orb on the ground before him. But nine chains made of golden light held him in place.

"You bastards get these damn chains off of me!!!" 

One of the men holding one of the chains sneered at him and yanked at the chain wrapped around the young man's leg tighter. 

[Robed Man 1] : "We will once your dungeon core has been destroyed. Now that the goddess's holy chains have sealed your annoying ability, we can finally destroy the last core. Then none of us will have to worry about monsters born out of the mana you demons create." 

The young winged man laughed at what the man had just said, but his reaction was cut short when a woman pulled the chain around his throat.

[Robed Woman 2] : "What are you laughing at!"

"The fact that you didn't have an issue with that before. The moment that there's a goddess that provides more convenient conditions, you abandon your god. The god that created my kind to be nothing more than a mine for all the other races. We provided you with potions, wealth, materials, and other things, yet you call us monsters?!. But what's more hilarious is that the so-called holy energy you talk about is no different than man…a."

Before he could finish speaking, the group pulled harder to shut him up. 

[Robed Woman 2] : "Shut up!! We won't listen to your lies!!"

"Hehe, suit yourself, but what you don't see is that all of you are nothing but pawns against the gods. In the future, once enough of that holly energy you are so proud of gets created….Monsters will start spawning. But by then, you will have no choice but to continue depending on the goddess because the god would have lost."

[Robed Man 3] : "We've heard enough! Mages prepare your spells."

Three-robed men nodded and began chanting. An orb of purple glowing mist emerged from their palms and began expanding as they did. 

When the blond man saw that, he burst into laughter. "Now this is ironic… to destroy the god's creation, you will use his own power. What was that goddess of yours not stro…."

[Robed Woman 2] : "Enough!!! Don't you dare insult our goddess with that filthy mouth of yours!!!"

A smile appeared on the young man's face as he felt two thugs pulling behind him. He used the little force that applied to his advantage. With all the strength he had left, he pushed himself back.

The group was proud of its formation and had been in sync the whole time. This meant the group had done this successfully multiple times, which was why they had grown too comfortable. The others were surprised at his sudden movement and reacted too late. 

He had reached the woman who held the chain around his neck. He used his large right wing to price through her abdomen.

[Robed Woman 4]: "Everyone quickly! Pull him back to the center of the circle."

Before anyone could try to grab hold of the chain still wrapped around his throat, he quickly began chanting. As one of the men released the chain holding his left arm and ran for the chain around his throat, the young man used a neck and wing movement to send it flying closer to him. 

When the man saw that he would have to get within striking distance of his wings, he froze. 

Eight seconds was all it took for the young dungeon lord to finish his chant. The moment he stopped chanting, tens of magic circles began materializing on the black stone floor. 

[Robed Woman 5] : "It's a high-class magic trap! Inferno Ray"

[Robed Man 1] : "The whole room is filled with them. We have to get out of here!"

[Robed Man 3] : "No! Maintain your positions. We will end this once and for all!"

Even though the captain tried to keep his men composed, some still decided to flee. Now that there weren't as many to hold him back, the dungeon lord could slowly start walking closer to the orb. 

[Robed Man 3] : "Mages, quickly fire your spatial ball spells. It doesn't matter if the spell isn't completed. We can't let that demon reach the core, and the magic traps will be fully charged and second now!"

Listening to their group leader, the three mages nodded and fired their spells at the orb just as the young man reached it. 

The moment the three spells connected, a mass of warping purple energy appeared. 

The young man could feel his body being broken down by the mass of energy. The orbs in his hands were beginning to crack. When it broke, tens of shards were sent flying through the purple void. 

He was able to hold on to one of the shards, and he hugged it tight as his body continued to disintegrate. Eventually, after feeling as if a lifetime had passed, he no longer felt pain.

When the purple mass dissipated, nothing was left. The group of 7 sighed in relief at seeing that the dungeon lord and dungeon core were gone. To make things even better, the magic circle for the traps had disappeared. 

[Mage] : "It seems like the traps were a bluff. Otherwise, they would have gone off with or without the core by now."

[Robed Man 3] : Well, that's a relief; dungeon lord Luren was always hard to deal with. It's a surprise that his dungeon was only 8 years old. I shudder at how much more troublesome it would have been if we had waited any longer. Thankfully, we are almost done. The only thing left is to get rid of those bastards who ran. 

The group nodded and began making their way out of the room. Little did they know that the 18,000-foot-deep dungeon was being held by structural pillars reinforced by mana, mana that came from a mana reserve, the reserve that had been nearly emptied by the experimental incomplete traps the dungeon lord had been experimenting with.