Eternity (Earth-300)

"Before the dawn of life. Before the creation of everything that is and will be, I, Eternity, was here. In this young universe do I dwell, embodying it while defending it from forces that endanger this reality's existence. And while I couldn't directly intervene with the affairs of my creations, I am always here to protect."

- Eternity Eternity is both the first cosmic being and living thing in this universe, with his first sister, Infinity, sharing such title. The supreme master and defender of the universe, Eternity strives to guard this universe from forces that could eliminate its existence even if he cannot directly intervene the affairs of the universe.

Personality
As a cosmic entity, Eternity regards all that he sees as things that are below him. That doesn't mean he's arrogant, though. He regards things low in the context that they're clearly lesser in power than him, but he has a responsibility to guard them even when he's constrained to defending the universe from reality-threatening forces. No matter what dimensions reside in this universe, whether they're ruled by evil forces or good forces, Eternity never differentiates them as realms unworthy of his protection. True, he does not differentiate or discriminate, but he himself never favors evil dimensions after what happened with Trigon.

A little known fact about Eternity's "discrimination" is that after Trigon's defeat in the hands of Galactus, Eternity's rage was so great that he actually nearly destroyed the demon lord's dimension. Eventually, Eternity knew of the concept of order and chaos and decided not to destroy his dimension. Such conception and realization also indirectly resulted in the creation of his future consort/wife figure, Kismet, the Lord of Order.

In interacting with other cosmic beings, Eternity acts accordingly in a civilized way. "Accordingly", as in how he speaks and how he shows off his manner to certain beings. To beings that are necessary forces in this universe, like his brothers and sisters of the pantheon of Cosmic Entities, he sees them like how a person sees his/her friend. To beings that are not just unnecessary but also corrupted in nature, Eternity still gives off the same manner as the former, although he's more assertive in his expressions.

To beings of lesser power or mortals, though, Eternity's manner is unique. He speaks in a way similar to a mixture between his two manners to various beings mentioned previously. Eternity tends to keep his tone polite and friendly, while also being assertive when he's getting pushed over. But Eternity all and all is respectful, never underestimating one's capabilities except the individual is obviously... powerless.

Eternity takes great responsibility in handling how the universe goes. As said, he can't directly intervene with the universe by undoing or redoing something, but the universe is always under Eternity's watchful eye. He's technically the entire universe, anyway.

Powers and Abilities
"The universe is eternal. And Eternity is the universe. No other beings in this universe could possibly defeat him."

- Infinity