Pseudo Deities could also establish constraints, but each time they used one, they had to pay a severe price.
Heavenly Beings, however, could use them without negative effects and even use them multiple times in a single battle. After the fight, they only needed to wait a while for the source consumed by the constraint to slowly recover.
As for why constraints had to be spoken aloud, that was also due to their nature.
They had to be declared first before they could be invoked.
Furthermore, constraints were one way to reveal the differences between sources.
Sources were divided into Solid Source, Void Source, and Special Source.
Solid Source was source advanced through tangible substances, such as wind, water, and fire.
This type of source could not establish constraints such as being guaranteed to catch a blade barehanded.
Void Source—life, death, causality... The constraints they established could accomplish many things that defied common sense.
The same was true of Special Source. The burning Chen Yi had comprehended belonged to Special Source.
For Heavenly Beings who had just entered Rank 7, the latter two types of source were stronger.
But in the end, it still depended on who had gone further.
Just like the Deities of the City of Heaven, the truly powerful ones were mostly Deities with Solid Source.
The Three Fates Goddesses, the Goddess of Curses... They were clearly several levels weaker than Deities such as the God of Sun and the God of Thunder.
As for Chen Yi's constraint, it had yet to be established.
That was because Chen Yi was still hesitating over which direction to choose.
After personally experiencing Zhou Zi's constraint attack, Chen Yi made his decision.
A single positive constraint had taken nearly 300,000 of his health. Wouldn't a reverse constraint directly inflict severe