Redo: Grimoire System in the Apocalypse

Geth used over five hundred Mana on the spot to form a pit of liquid concrete. The Skeleton King was caught by surprise as its body dropped into the ground.

He expended another thousand Mana to solidify the stone and entrap the Boss once again. This time, it was utterly trapped from the waist down.

:Skeleton King, Lvl 50 (Boss); HP- 22,146/79,500:

"Finally!" 

Geth moved out of the King's reach and began to spam Mass Invocation, quickly ending its life. The sword clattered to the ground as a chest took the place of its ashes.

'Something I will never understand,' Geth shook his head as he turned away from the chest.

Sometimes they were in some corner of the room. Other times they would drop from a corpse. Geth just couldn't wrap his head around the way the loot appeared.

'Too bad you turned it to ash. Maybe there was some storage Formation drawn into its body,' Albus suggested.

Geth let one of his selves think on it while he went to assist his tames. They had already killed the Forsaken and were whittling down one of the Skeleton Knights in the same fashion.

'Five left. After that, it's just the Necromancer.' Geth glanced at the Boss. It was still standing in place chanting, which seemed odd to him.

Geth changed direction, heading straight for the Boss instead of helping his own Skeletons. There were only four Forsaken left in the Formation. They couldn't cause much damage.

Geth's Mana had already been restored again. On top of that, there was no strain from overusing Mass Invocation thanks to Immersion.

He ran into the Necromancer's range with Restoration already cast on himself. The effects of the black mist instantly started taking their toll.

The Boss made no move to defend itself as Geth began taking damage every second, even with Restoration active. He slammed his staff at the creature, only to be pushed away by a Barrier. 

The Forsaken were running towards him, but they were much slower than their Skeleton counterparts. They wouldn't catch up before he could cause some damage.

Geth cast his Invocation spell. Necromancer Draug took very little damage, just under 800 dropping from his max health.

:Necromancer Draug, Lvl 55 (Boss); HP- 144,231/145,000:

"Shit."

Geth backed out of the Formation as the Forsaken caught up to him. He looked at the Boss from a distance, its health rapidly restoring as some of the corpses on the ground further decomposed.

'This is my first time fighting a creature with high Wisdom. How can I break through that Barrier?'

'I feel like it's biding time. Damage the Forsaken and force it to wipe all of the corpses from the area. It shouldn't be able to sustain that aura without them.' 

"Great, now my selves are talking to each other," Geth shook his head but ultimately agreed.

He looked back to find that his tames had just finished off the Skeleton Knight.

"Target one of the Forsaken. Don't force it out of the circle!"

He cast Restoration on each of the remaining Sub-Bosses and waited at the edge of the Formation. His Skeletons constantly pelted them with arrows as they lumbered towards him.

Their health continually replenished as the corpses rapidly began to disappear.

'It's working.'

He increased his own Strength and Agility again and ran forward to engage with the beasts. The fog may weaken his spells, but his physical abilities weren't affected.

Geth pelted the creatures with his staff. Every strike caused hundreds of damage and sped the process up even further.

The Zombies may have been strong, but they weren't fast at all. Not a single strike landed on him as he danced around them.

The process went on for several minutes before the last of the corpses faded into nothingness. His next hit dropped over 300 health from one of the beasts, but this time it stayed off.

Seeing this, Geth wanted to end them quickly. He spammed his Invocation spell until all four of them turned to dust at his feet.

The Formation disappeared, and it was finally time to set his sights on the Necromancer. His Skeletons surrounded the Boss from all sides.

They fired their arrows at once while Geth watched from a distance. Every arrow bounced off the transparent Barrier as if they had been fired by children.

The Necromancer stood uncaring in the center of the Barrier. Its eyes were closed, seemingly oblivious to the world around it.

After multiple rounds of arrows, Geth approached the Barrier himself. He tapped on the screen with the back of his knuckles. 

A ripple appeared in the air before him. It looked similar to a stone being tossed into water.

Geth walked around the still creature, tapping the air on every side. Each side produced the same ripple-like effect.

Even Inspection didn't seem to pick up anything out of the ordinary, so he began examining the Boss instead. It was a small creature, its size between a Goblin and a Human.

There weren't many features that could be made out. It was practically mummified by black wraps.

The creature had no legs. Instead, a grey fog extended beneath it, holding it off the floor.

Geth tried casting Restoration on it. It was taking damage per second, but it still remained unfazed.

The damage that Necromancer Draug was taking per tick was massively reduced.

"This thing's damage reduction is close to seventy-five percent!" He exclaimed.

Each tick was only dropping its health by around 45. Geth struck the Barrier with his own strength.

A massive wave extended from the point of impact and spread all the way around the creature. The rippling continued for many minutes before the space became still again.

The Tornado of bones began to spin faster than before, the sound of rattling filling the surrounding space.

It was at that moment that the Necromancer opened its eyes.. A pair of red eyes that looked just like the devilish man's stared at him from inside the Barrier.

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