Aizen was still dodging the white dragon's attack with Ana in his arms when he heard Axel's suggestion. The heat devastating energy continuously shot out from the twelve heads of the white dragon and was dodged quickly by the ten of them with the help of their battle armor.
"Send all [Destruction Unit]!" Aizen confirmed the emergency advice from Axel.
Without waiting anymore, Axel immediately opened the [Dimensional Gap] right above the white twelve-headed dragon. The [Axel Goddess] fired a heavyweight cannon beam straight at the white dragon's body to give them a little more time.
*Boom!*
The burst of energy that could annihilate a [Rank 8] monster in just one hit directly collided with the white dragon's massive body.
"Roar!" The white dragon screamed loudly and stopped its incessant attack, its body was currently enveloped in a burst of unstable energy.
Axel didn't dare fire the ultimate attack from the main energy cannon of the [Axel Goddess] because the impact would be very dangerous in a closed place like this even though it might kill this [Rank 10] monster in one hit.
When getting a little pause from the relentless attacks, Axel immediately took out the entire [Destruction Unit] in combat mode and the cockpits of all units were already open to the pilot.
Aizen gave orders and plotted several attack patterns through their system without another word. He released Ana in his arms, then the two of them immediately entered the cockpit of Mecha, followed by Axel and seven fairies.
Unit #1 immediately closed its cockpit, the Mecha's accent immediately glowing red with eyes glistening red ready for combat. Another [Destruction Unit] immediately followed suit and now they were ready to fight without worrying about taking heavy damage against the top tier [Rank 10] monster.
"Follow the plans and formations in the system. All units, take your positions and attack!" Aizen gives the order to attack while advancing rapidly using the turbojets on his Mecha which form fiery red wings right behind him.
"Roger!"
All units immediately darted in various directions as planned while firing a high-explosive laser beam at the white dragon who was completely unharmed.
Due to the difficult circumstances that prevented them from flying high in the air, the fiery red energy wings were only used to propel the fast Mecha at a very close distance to the ground.
"Roar!"
The white dragon roared in anger, the current ten small creatures had already become ten larger metal creatures. The monster changed its method of attack instantly, the monster's stomach started to give off a bright blue glow and immediately countless runes appeared around the white dragon's body which rapidly spread out into the various corners of the majestic hall.
*Swoosh!*
The white dragon fired back attacks of extremely hot destructive energy from its twelve mouths with even more force at the runes that appeared around its body.
"Activate the maximum level energy shield for all units!" Aizen gave the order to use his system to activate energy shields for all [Destruction Units].
*Swoosh!* *Swoosh!* *Boom!* *Boom!*
The beam of destructive energy shot in various directions and spread as a result of the runes that were at various corners of the hall leaving no place to escape or hide, followed by a violent explosion as the monster's attacks collided with the ground or their energy shields.
The white dragon stopped its attack as all parts and corners of the hall were enveloped in a burst of bluish energy which violently destroyed various parts of the hall, but the damaged places were slowly being restored by an unknown force.
The monster checked its surroundings to detect whether the metallic creature had been wiped out due to its attack, the monster was currently off guard and the burst of bluish energy severely limited its detection ability.
Aizen takes advantage of this to plunge into a plan of a fatal surprise attack. He took out a spear of destruction three times bigger than the [Destruction Unit]. The weapon with the most penetrating power, the highest version of the one he had used while on Mars.
Within the energy shield protecting himself from the enveloping burst of intense energy, Aizen charged the energy into the spear of destruction in a flash.
A red burst of destructive energy with fierce black lightning began to flash. Aizen immediately activated his Mecha booster jet to shoot at full speed towards the white dragon who was so caught off guard that a Mecha appeared right in front.
"Take this!" Aizen thrusts the spear of destruction straight into the large belly of the white dragon.
*Boom!*
A burst of red energy and a flash of black lightning flashed as the spear collided with the white dragon's belly and managed to pierce through the immense hard scales they had completely failed to injure from the multiple attacks just a moment ago.
"Graa!"
The white dragon screamed in excruciating pain. The monster's stomach was pierced by the energy spear and a burst of energy was detonated right inside its body.
"Now!" Aizen immediately darted away from there, beckoning according to plan.
The other nine [Destruction Units] had already prepared a high penetrating attack similar to the one launched by Aizen. The nine Mechas shot out very fast and pierced the dragon's body from various directions on its body.
*Boom!* *Boom!*
A burst of energy detonated once again with nine blasts simultaneously.
"GRAA!"
The white dragon roared loudly with the excruciating pain that the monster was currently suffering from as a result of the fatal shock attack.
Unfortunately, the follow-up attacks didn't stop there. After all the units had moved away from the monster's body at a safe distance, Axel opened the [Dimensional Gap] once again and fired all the heavyweight cannon beams available at the [Axel Goddess].
Dozens of attacks that could scorch a [Rank 8] monster were easily fired continuously directly at the enormous monster's body which was still gushing purplish-blue blood from its wounds.
*Boom!* *Boom!*
Numerous continuous Explosions that were far more powerful than the ones before immediately enveloped the white dragon's body.
"Master Aizen, that's still not enough to kill a monster at the peak of that mortal realm." Axel proposed when she stopped the repeated attacks and closed the [Dimensional Gap].
"Proceed according to plan." Aizen was unsettled by this suggestion. Because of that, they had to continue their attacks without waiting for the response from the white dragon they were currently fighting or checking on the monster's current state.
"Roger!"
The ten units immediately rushed into position and surrounded the burst of energy that was still burning violently over that wide range, then they focused their energy to create a coiled unified rune with all ten of them as the catalyst.
The large-scale circular rune lit up in a bright golden color with a drastically increased flow of energy and immediately concentrated to create a smaller-scale circular multi-layered barrier right at the center of the rune, right where the white dragon was still using a self-protection technique.
They used quite a lot of [Axel Energy] from the energy capacity stored in the [Destruction Unit] for this final attack, the concentrated destructive energy of the ten [Rank 10] Mechas.
"Perish."
That was the one word Aizen spoke as the explosion concentrated within the multi-layered energy barrier in the center of the rune exploded like a supernova explosion. The explosion was firmly contained by the multi-layered barrier that well resisted the destructive force.
The hall was slightly dim at first with an aura of horror and tension, it suddenly became blindingly bright followed by several vibrations of energy waves that shook the entire hall, but the energy waves did not manage to escape from the walls of the hall due to a mysterious force that repelled and neutralized them.