Transmigrated as a Ghost

Watching the blast of mana that was by far the strongest attack any of them had seen since entering the final challenge of the special dungeon, everyone froze up for a moment.

Seeing such a powerful attack coming their way, all of them began running through ways to defend against it, but none leapt forward rashly. There were still stragglers from the monster army attacking them, and if they all moved to intercept the blast it would leave these enemies free to do as they liked

They were waiting for orders from Marcus who everyone agreed was going to lead them with Mrazivý as his sub commander.

Thankfully he managed to snap out of his surprise quickly enough to issue and order and picked who he thought was the right one for dealing with his incoming attack.

'Inten, take their power and send it right back at them.' Marcus ordered over telepathy.

Receiving the command loud and clear, the smallest member of their group, the great diamond mouse Inten launched himself into the path of the mana blast and opened his mouth wide.

When the attack finally reached them, it easily plowed right through Marcus' radiance scales spell that he was using to protect everyone.

There was simply no way the spell that was so spread out had any chance of blocking this attack.

Inten on the other hand in what seemed quite comical had his mouth open and began sucking the mana into himself.

This was the utilization of his unique skill Magic Eater, and while the blast was easily several thousands of times bigger than him, he had no trouble swallowing up the mass of mana.

Still, he had his limits, and the attack was incredibly dense, with more than he could take.

Around halfway through eating the blast Inten reached his capacity and had to expel all the energy he had absorbed.

A new blast of powerful mana erupted out of his body and began pushing back the remains of the one that had been fired at their group.

​ Then when the two opposing blasts met their limits, a massive explosion rocked the area around a kilometer away from Marcus and his team.

It was an amount of power that Marcus could only describe as similar to a nuclear blast, and he was honestly surprised by the sheer magnitude of the attack compared to everything else they had seen so far.

The tremors caused in the wake of the explosion caused cracks to form throughout the field and Marcus and his team had to brace themselves not to be knocked over.

The monsters that had been surrounding them were blown away. With many of them being severely injured or outright killed by the mere aftermath of the powerful blast.

'How the hell did they unleash such power?!'

Looking at the battlement that had the large and long annon barrel sticking out of it, Marcus tried to gleam how a mana cannon was able to amass that much energy.

He had seen plenty of these magical weapons before, but even the highest yield military grade mana cannons could not fire off attacks of this level.

Then to make matters worse he saw the cannon begin to glow again as it built up more mana to launch another blast.

That was when all of them saw the monsters within and immediately around the battlement start to drop.

The power of this cannon was not something that could be used easily, and the monsters were sacrificing all of the mana at the cost of their lives to fuel it.

Yet despite hundreds of them dying to fuel its attacks, it barely put a dent in their numbers and gave them the ability to launch enough mana to actually threaten Marcus and his group.

"Inten, can you block another one?" Marcus asked to his beast companion.

Unfortunately, Inten shook his head. After having absorbed so much mana and firing it off in a blast, he was pretty worn out and certain he could not handle another attack of the same level so soon after the first.

At this Marcus clicked his tongue and turned towards Lyra instead.

"I hate to have to do this, but your unique skill is our best bet."

Nodding her head, she felt the same way and positioned herself at the front of the group right before another blast came their way.

"Reflector Shield."

When the blast was close to swallowing them all, Lyra used her unique skill and created a gleaming crystal tortoise shell in front of her.

In what seemed impossible the second the front of the blast touched Lyra's shield it coalesced and bounced right back where it came from with just as much power.

A barrier erected around the battlement to try and block the attack, but its defenses were unable to take its own attack redirected at it.

Once again, the entire battlefield shook from the explosion of mana, and when everything cleared all that was left of where the battlement had been was a huge crater and a mangled cannon barrel.

For a few moments time seemed to have stopped, but soon enough they all cheered at having taken out the first major threat.

Still, it was only one of several battlements that were set up for the monsters, and it was unclear if they posed the same or similarly powerful weapons.

"Everyone keep the monsters off me for a few minutes. I want to see if I can take out those other battlements from here." Marcus said.

He then held his scythe in front of him and the smaller blade on the backside of it seemed to extend, and a string of mana pulled taught from the front of the scythe to the back.

His scythe had now taken a form that looked like a crossbow, and Marcus began shimmering with an immense amount of power as he activated his supreme skill.

'Eclipse Railgun.'

Firing off one of his strongest attacks, he aimed for the next battlement that was around seven kilometers away from them.

At Mach Fifteen the projectile he had fired reached its target in only slightly longer than a second, and the battlement was hit by an unstoppable force.

A large explosion followed in the attack's wake and the second battlement came crashing down without Marcus or his team ever getting into its range.

After that he proceeded to launch nineteen more railgun attacks. One for each of the battlements.

All of them tried to activate a barrier to protect themselves, but not a single one could withstand Marcus' attack.

Soon enough the twenty-one battlements that had originally stood proudly over the battlefield and were the heart of the monster's strength were left in ruin. With only the first one even being able to fire an attack.

'Whew, that took a lot out of me.' Marcus thought as he chugged three high grade mana restoration potions.

Nevertheless, while he was pretty worn out by using his full power multiple times over, he had effectively dealt with the greatest threats.

Now all they needed to do was continue fighting through the tide of monsters, that while powerful in their own rights, were comparatively weak to any of them.