It had originally been nothing more than a useless skill.
But after being raised from F-rank to A+-rank, it underwent earth-shaking changes!
It directly turned an escape skill into a perfect stealth assassination skill!
And besides...
It had been mentioned before that elemental domain skills for the mage class began at A+-rank.
But they could be upgraded using skill points.
Although the High Demon class also possessed domain skills, their initial rank was lower than that of mages, only A-rank.
After all, the High Demon class was a special existence that cultivated both magic and martial arts. If their skills started at the same rank as those of other classes, that would undoubtedly be a bit too broken.
To ensure that Cicada Escapes Its Shell would not be detected by Norton's Chaos Domain, Ling Zhan had made thorough preparations and run tests.
After all, Cicada Escapes Its Shell was only A+-rank. If Norton had upgraded Chaos Domain to S-rank, it would naturally be detected with ease.
So, when Dragon Sniper fired its third shot at the backline classes earlier...
Ling Zhan used an S-rank skill as a probe.
Extreme Acceleration!
That skill directly caused the bullet to surpass the speed of light, and it even pierced through Norton's Chaos Domain at the time.
One had to know that even this skill would be detected within an S-rank Chaos Domain.
After all, an S-rank Chaos Domain was already capable of detecting bullets that surpassed the speed of light.
Why were S-rank skills called god-tier skills?
Naturally, because they stood above the laws of ordinary order.
For instance, the greatest speed currently known to humanity was the speed of light.
But among S-rank skills, absurd effects such as surpassing the speed of light and traversing space without regard for distance were everywhere.