[Strategic Expansion Technique] is the No. 2 Super Demon Mystery recorded in the book "The Technique of Using the Secret of Super Magic", but it has been criticized by others.

Its effect is similar to the [Spell Expansion] in the Ultra Magic Technique, which can increase the area of effect of a spell in the shape of a burst, spread, straight line, or spread.

While the effect of Spell Expansion doubles any value of a spell's radius, the effect of Strategic Expansion increases the spell's area of effect by at least ten times or more!

However, its effect is only that, it only allows spells with a limited area of effect to expand the area of effect, and if you want to increase your power, you need to carry other super magic skills or super magic mysteries.

Compared to the cost of spell expansion, spells that expand need to occupy more spell slots than the original three levels, while strategic expansion will increase the cost of spells by square levels!

Because of this, strategic expansion techniques are often costly and ineffective on small-scale battlefields, and there are few opportunities to play.

However, on a large-scale battlefield, [Strategic Expansion Technique] can turn ordinary small spells into killer features that can change the balance of power on the battlefield!

At this moment, the muse reached forward and passed through the perfect hexagon formed by the collapse of the arcane sequence.

"....... one, release the Super Demon Mysteries Strategic Expansion Magic Force Field Resonance!"

As Illya and Elijah's words fell, an arcane model of the Muse Sea was rapidly constructed.

Buzz

A flash of arcane aura flashed, and five gravitational sources of different sizes suddenly appeared in front of the muse's palm, connected to the five fingers, rotating with his mind, emitting a circle of force field energy.

After superimposing the amplification, these five gravitational sources together form an obscure force field, which is transmitted outward with a slight tremor.

At this moment, the perfect hexagonal shape around the muse's hand suddenly changed, and deep vortex ripples appeared between the dense rune lines, as if it had suddenly become an amplifier, making the detection force field range of the force field resonance structure suddenly expand, using the city wall in front of it as a carrier to rapidly expand into the distance, and along the connecting part of the city wall and the city wall in the city.

It's like sound traveling, it's undoubtedly faster in solids than in air!

"It seems that there is a little bit of a big ......"

Suddenly, the arcane energy in the arcane energy cycle in the muse's body poured out like a flood of sluice, and correspondingly, the detection force field of the force field resonance in his hand had covered a small part of the city!

Generally speaking, at this time, the muse uses its own spiritual perception to pick out the natural vibration frequency of the target, and then induce the resonance of the target through the force field vibration conduction excitation frequency, so that it vibrates with a larger amplitude, and then causes damage and destruction of the target's internal structure!

However, at this time, with the blessing of the strategic expansion technique, the detection force field of force field resonance has covered a large area of the city, and it continues to expand without stopping.

This makes the vibrational information transmitted back too large, if the muse does not choose one of the commonalities, it will not be able to achieve the purpose of destroying by inducing resonance!

"Sizzle"

His face turned pale little by little, and this single force field resonance almost consumed most of the remaining arcane energy in his body.

However, this is still expected by the muse, because in the previous Arcane Empire, when he used the strategic expansion technique to cast spells, he was on a large-scale battlefield, and basically connected to the energy source of the floating city to ensure the energy supply.

And that's not the most pressing issue right now.

"Elijah, Elijah. ”

"Running the data computing module at full power. ”

"Find out which vibrational frequencies cover the widest range!"

"Running the spirit guidance module at full power. ”

"Assist in the exertion of force field resonance. ”

In the spiritual sea of the muse, two dark golden crystals lit up slightly, and then a large amount of data began to streak across it.

At this time, the coverage of the detection force field has covered nearly one-third of the city!

"The data computing module is running at full power!"

“......”

"Received 5,522 vibrational frequencies ......"

"Data Correction. ”

"Seven thousand seven hundred and sixty-one ......"

"Data Correction. ”

"Eleven thousand three hundred and seventy ......"

Data Correction ......

Data Correction ......

"A total of 17,522 vibrational frequencies"

“......”

Start culling irrelevant vibration frequency ......

“......”

"Spiritual guidance begins to ......"

Soon, two half-virtual and half-solid spiritual silk threads penetrated into the spiritual connection between the muse and the force field resonance, and began to assist the muse in the casting of the force field resonance.

In an instant, the amount of vibrational information transmitted to the Muse's spiritual perception began to decrease precipitously, and in just a few moments, it was reduced to a single-digit level.

"Well, that's it. ”

From time to time, the five fingers of the muse move slightly, constantly adjusting the frequency of the force field vibration, slowly approaching a specific frequency......

Uhh

At this moment, in a third of the cities on the side of the muse's location, a seeping roar came from the darkness everywhere, and a pair of blood-red eyes lit up.

Countless aberrant beasts lurking in the darkness roared in unison, because they had the beast sense that sensed a threat coming from nowhere, but they could not find the source of the danger, and could only do the only thing they could do, to show the threat by roaring.

And the next moment, with the five fingers on the palm of the muse's hand, an invisible ripple suddenly appeared, expanding to the entire range covered by the previous detection force!

There was a moment of silence.

Nothing seems to be happening.

"Elijah, Elijah. ”

"Contact the split incarnation of the Arcane Tower. ”

"Activate the Astral Gate. ”

"Lock my space marker. ”

"Activate the interspace portal. ”

And after doing all this, the muse, whose face turned pale, seemed to have no time to care about anything, and directly ordered in his heart.

Immediately, a silver ball of light appeared in front of him, which quickly turned into a gate of light and engulfed him.

After the Muse left.

Crunch

Countless noises sounded inexplicably in the interiors of all the nearby buildings, and it sounded very unpleasant.

Then, a nearby section of the towering city wall suddenly shook violently, and cracks began to spread!

Rumble!

Soon, this section of the city wall shook suddenly, and then it collapsed outward with a bang, stirring up smoke and dust in the sky, and turning into large pieces of fragments of masonry and rolling down!