So, across the entire battlefield outside, there were hardly any Noren Workshop wizards below Level 6 to be seen.
All the low- and mid-level wizards had retreated inside the fortress, taking shifts as the power sources for the artillery.
And Benjamin...
"Fire."
The instant charging was complete, he gave the command.
Turret No. 3 shuddered.
A pure-white beam five meters in diameter tore through the air, crossing more than a thousand kilometers at nearly the speed of light before accurately striking the center of that swarm of beetles.
The white light exploded, transforming into a purification domain three thousand meters across.
Within the domain, three thousand Level 4 beetles, along with the few Level 5 wizards commanding them, were instantly vaporized.
Only a lava crater with smooth edges remained on the ground.
And almost at the exact instant the beam left the barrel, Benjamin let out a muffled groan, his face turning pale at once.
A needle-like pain stabbed through his brain. His consciousness began to blur, and it felt as though every last ounce of strength had been sucked from his body in an instant.
This was what spiritual power exhaustion felt like.
After experiencing it once, an ordinary wizard would need at least one or two minutes of collapse before regaining the ability to move.
That was why, after firing a round, many wizards at the surrounding turrets were directly dragged off their consoles by the wizards waiting behind them and moved to the rest area.
But Benjamin was not.
His left hand, already prepared, snatched up a crystal potion vial beside the console like lightning. His thumb flicked open the stopper, and he downed the thick dark-blue liquid inside in one gulp.
[Holy Soul Echo Elixir], a Level 6 Magic Potion that could restore all of a