Chapter 648
But Darius was also moved by these Eternals.
At their core, Eternals were individuals that had been given unfathomable power by their Eternity Swords. The relationship between an Eternal and their Eternity Sword was usually one of companionship, as the Eternity Swords were powerful enough to have full-fledged personalities of their own.
In some cases, they could even force their will upon their wielder to gain an advantage in battle. When someone became an Eternal, they must be completely severed from the time axis or the river of time.
That is, all evidence and effects the Eternal had existed in their world of origin or any other world is rendered void the moment they become an Eternal. Because of this, they stopped aging from the moment they became an Eternal, and became immortal by practically all means.
Usually, the only one who could defeat an Eternal was another Eternal.