As the Twin Demon went all in, he threw in all of his remaining fifty-plus percent of territory in one go.
Including the fifteen percent he had retained before, the amount of territory he held across the battlefield instantly reached its peak.
The growth of territory brought with it the power of rules.
And the rules governing the Twin Demon's territory were exceptionally suited to his demon name—Twins.
Within his territory, once anything came into being, it would exist in multiple copies.
At first glance, this rule-based trait did not seem capable of forming a domain useful in battle.
But that was not the case. Many things became terrifying when an extra copy suddenly appeared.
For example, if you cast a fireball and a second fireball suddenly appeared, it would be fine if your mental strength was sufficient to control it. But what if it was not?
Thus, in this environment, many demons failed when casting spell-like abilities because of the extra objects that appeared.
The demons on the Twin Demon's side, however, were different. Even if extra things appeared when they cast spells, those things would not burden their minds. They would only increase the power of their spells.
And that was the strength of a rule domain.
It could adjust the traits of its rules according to one's will.
For those on his own side, duplication naturally became a benefit; for the enemy, it became interference.
A high-ranking demon's sword energy turned from one slash into two, while another high-ranking demon suddenly found an extra consciousness inside his mind.
With one side gaining and the other losing, that high-ranking demon had no time to resist before he was killed.
Many similar incidents happened in an instant.
The Twin Domain had possessed this effect before, but it had not