Created by Brian Azzarello and Cliff Chiang during their Wonder Woman series. He first appeared during issue #12, but wasn't fully revealed until #13.
Major Story Arcs
A grotesque and enormous man with cannibalistic tendencies and a muscular body entirely covered in scars. He emerged from the ice in Antarctica soon after the God Apollo took over the throne of Olympus, and was soon approached by a group of scientists who were waiting for him to appear. He devoured one of them and started talking with normal human word, after he first only spoke into a strange mysterious language. He claimed to be "the one with no name, the crippler of souls, the First Born", and refused the group attempt to "help him".
He's later revealed to be Zeus and Hera's first born son. On the day of his birth, a witch predicted that in the future, Olympus would have been under his absolute control. Enraged, Zeus ordered the witch to kill the infant, but seeing the desperation of Hera, the woman decided to spare the life of the kid and only abandon him.
The First Born has been clawing his way out of Earth for seven thousand years. All knowledge of his existence has been erased from history by Zeus, the only report of his story was tatooed across the mummified body of the witch that spared him. The tale had taken most of the lead scientist Cassandra's life, as the body was discovered 80 years ago, and recounts how the witch left the infant First Born in the wilds of Africa and how otherwise savage beasts took him in and nurtured him.
Since his recovery, the First Born first collected his arms and armor, made of a dragon's hide and bones. Then he bargained for his army with Hades and Poseidon, who would be left alone in return along with the death of the Last Born: Zeke.
Wonder Woman and her allies, fleeing the goddess Artemis, were unprepared for an encounter with the First Born and had to flee to New Genesis, with Lennox sacrificing himself in order to let the others escape.
With no way of following them, the First Born laid claim to London and waited 3 days before the group would return, only to be defeated at the combined hands of Wonder Woman, Orion and Ares, leaving Ares dead and Diana the new God of War.
Apollo claimed the First Born and attempted to torture him into obedience, only for him to eventually break free and kill the Sun God, claiming Olympus as his own. With his father's throne, the First Born has since been on a campaign to kill the other Olympians, having killed Hades and fed him to Chronos and nearly killed Demeter and is now poised to invade Themyscira. The only one he appears to respect is Wonder Woman, for having defeated him.
The First Born was born as such to Zeus and Hera of Olympus in a time before recorded history. Zeus had a witch who foretold the infants future, revealing that one day the child would rule Olympus alone. As Zeus himself had vanquished his father, and like his father before him, Zeus feared he would share their fate and bade the witch kill the infant, in spite of Hera's protests.
The witch, however found pity with the infant, and rather than kill him as ordered, she left him on the African plains with the slim chance to survive. Rather than being savaged by the beasts of the plains, the First Born was taken in and raised by a pack of hyaena's.
Despite never meeting any humans before he reached manhood, the First Born instinctively knew he was the son of Zeus and he spent his days attempting to gain his attention without success by performing feats of strength and savagery.
Having grown to manhood and realized he would never gain the attention of Zeus from the plains, he set his sights on the emerging human world. Together with his pack he created an army of Hyena-men and invaded the human lands with it, eventually coming to control it all, ruling over a barbaric kingdom. Yet still, despite this feat, and what other monsters he threw himself at, Zeus still refused to answer.
Finally, the First Born decided that if Zeus would not come to him, he would go to Zeus and lay siege to Mount Olympus itself. He gathered his army before marching it to every corner of his kingdom demanding two things, join him or die, eventually the first option vanished.
At last when his army stood before Mount Olympus, the First Born challenged his father and threw a spear at the mountain. In response, Zeus sent a tidal wave that crushed the First Born's army and left the son half drowned. Zeus finally appeared in person before the First Born and condemned him, letting the Earth swallow him, dragging him into its core.
After this, only five people knew of the First Born had ever existed: Zeus, Hera who thought him dead, Poseidon who commanded the wave, Hades who received the First Born's army and the witch, who would chronicle the events on her own skin.
Like many of those with Olympian blood, the First Born has certain characteristics that marks his inhuman nature. In his case, it is his large body that is twice the height of a normal human and has glowing white eyes without pupils that marks him. Possibly a sign of his upbringing in the wilderness, the First Born's body is covered in scars from his fights with wild beasts and monsters. The scaly and large clawed costume he wears which he refers to as his "skin" and "power" is claimed to be that of a dragon he'd slayed with his bare hands many years ago.
Powers and Abilities
So far the First Born has only displayed a select few abilities due to his short amount of time above the ice:
Immortality: Like all of the Olympians, the First Born is immortal and has spent the last 7000 years digging himself out of the Earth, with presumably little to no nourishment.
Superhuman strength: The First Born has an unknown degree of superhuman strength, but has shown the ability to easily contend with heavy hitters like Wonder Woman and Orion at the same time. The First Born's strength appears to be so vast he can hold open a Boomtube portal, something the New God Orion had never seen before. He has also boasted that his blows has leveled mountains.
Linguistic absorption: A peculiar trait that allowed the First Born to learn modern English by eating the brain of a man.
Durability: So far the First Born has endured the pressure of the Earth's core and the chill of the Antarctic unaided and unbothered by the heat, cold and pressure. In battle he has shown to be easily able to endure the blows of Wonder Woman, Ares and Orion.
Leadership: During his time on Earth, before his banishment, the First Born commanded an army of Hayena-men that he considered his family.