Warlord Kro is a long-lived Deviant who has been the Eternals‘ bitter nemesis and hesitant partner. Because most Deviants have short, unstable lives, he’s forced to keep his immortality hidden from his own species. In that regard, he resembles the Eternals more than his own species. Kro is pragmatic who works for obnoxious Deviant rulers like Brother Tode. This often prompted him to do heinous things to impress his superiors, like wage war on the Eternals or involve the human species in his nefarious schemes. Kro has come dangerously close to bringing the world, and reality, to an end on multiple occasions, and his rage at having his schemes for control foiled often leads to violence.
Kro pretended to be the devil of Space
When the Fourth Celestial Host arrived, Kro tried everything he could to destroy the Eternals’ Celestials’ beacon, which was essentially a large landing runway. He was tortured by Deviant leader after failing, but he devised a new strategy. It involved sending a Deviant army into the stratosphere and landing it on New York City after changing his shape to add horns and using his natural red skin.
“I’ve returned from space to claim this domain!” he said as he and his henchmen disguised up as demons and set fire to New York, permanently imprinting the image of Deviants as devils and demons on humanity’s collective memory.
Kro nearly destroyed reality
The Unbinding Stone of Oshemar, which Ershkigal had stolen from the remains of Asgard, was a weapon of virtually infinite power. The Stone was capable of annihilating everything in its path, but there was no way to stop it. Ereshkigal, who was covered in runes, kept trying to come up with a vocal order for the stone. The Kro, who had lived for a long time, understood the language and knew it was from another world. He also remembered that it was erected by a race of telepaths, hence the stone was touch-activated. He did, however, manage to ignite it, nearly destroying the entire universe in the process. Thankfully, Thor came to the rescue with his anti-metal Vibranium, freeing Kro to rule once more.
Kro killed people on subways with Death boxes
In his countless demonic disguises, Kro continued to perpetrate evil. One of his more heinous exploits took place in Groton City, where the subway carriages were constantly involved in horrific accidents. Mercury/Makkari had assumed the superhero moniker “the Hurricane” as well as the alias “Mike Cury.” Makkari discovered an “infernal Death Box” in the ruins of a subway car. Kro’s entire devil outfit, replete with red tunic, pencil-thin moustache, and red, pointy helmet, was a little over the top. Kro was prepared for the hero, putting him to sleep with sleeping gas. The villain was on his way to destroying two subway lines when Hurricane/Makkari awoke and stopped him just in time.
Kro tried to steal Mjolnir
Thor learned of the arrival of the Fourth Celestial Host on Earth and decided to investigate. Thor escaped the Celestials’ dome after a fight with Ajak, an Eternal who served the Celestials, as well as a human SHIELD agent and the Deviant Ereshkigal. When he returned to New York, he was greeted by the Karkas, a Deviant mutant who became an Eternals’ friend. Kro had kidnapped Thena, Ikaris, and the human Margo Damian, threatening her life in the hopes of convincing Ikaris to surrender. Thor tracked down Sersi, who had kidnapped a Deviant, and the two devised a strategy to apprehend Kro. The three of them stormed Kro’s underground stronghold, but Sersi bolted. Karkas was killed by the Deviants, and Kro threatened to kill him unless he instantly surrendered his hammer Mjolnir to him. Thor handed the Deviant warlord his huge sword, which he held aloft, despite the fact that it seemed impossible. But did he actually hold Mjolnir?