Mikleo

Mikleo was a former soldier of the 107th Infantry Regiment of Hyland and the childhood best friend of Shepard Sorey. Mikleo was conscripted and assigned to the 107th in 1942. His regiment was captured by the forces of the CCG, but Mikleo along with what had remained of his regiment were rescued by Sorey, who had become The Shepard during Mikleo's military absence. Joining forces in the continuing war, Mikleo and Sorey had formed the Shepard's Posse to battle Heldalf's forces. During an attempt to capture CCG Seraph Symonn, Mikleo was caught in an ambush and plummeted from the CCG train, where he vanished and was then presumed to be deceased.

Unbeknownst to his team, Mikleo had actually survived the attack on Symonn's train. Brainwashed, Mikleo ultimately became an enhanced CCG operative known as the Winter Seraph. Over the next several decades, he would eliminate anyone who posed a threat to the CCG, including his former ally, Hoenheim Elric as well as his wife. Over half a century later, when he was ordered by the CCG's new leader Joker to go and assassinate M.O.N. Director Ciel Phantomhive, the Winter Seraph was unexpectedly confronted by his old friend, Shepard Sorey, triggering him to then begin remembering his prior life.

In the wake of the Battle at the Phantomhive Manor, the Winter Seraph went on the run from the CCG onto a mission to remember his past and end his long violent history. However, Mikleo was then accused of causing a terrorist bombing, which claimed the life of the King of Shura, among others. As Kenshiro sought revenge for his father's death, Mikleo was soon saved by Shepard Sorey, sparking the Jump Force Civil War as Edward Elric was sent to capture him. As it was revealed that General Esdeath had organized the Civil War, she revealed that Mikleo had murdered Edward's parents years ago. Having survived the latter's revenge, Mikleo was then taken into Shura where he was allowed by Kenshiro to be frozen until his mind could be cured of the CCG's programming.

Mikleo gradually recovered with help from Kenshiro's sister and was nicknamed Ice Serpent. Once Shura had come under threat of Omega Shenron for harboring Greed, who was currently in possession of a Dragon Ball, Mikleo had joined Kenshiro and the Jump Force to help fight off the threat, receiving a new Quinke Metal arm. Despite their best efforts, managing to kill all of Omega Shenron's forces, when Omega Shenron had arrived onto Shura personally, he effortlessly overpowered Mikleo and all the heroes and finally assembled all the Dragon Balls and become victorious, with Mikleo being among all those who were disintegrated.

Abilities
Mikleo is a Water Seraph, and as such has near complete control over the forces of water. He can shoot streams of it from his hands or staff, summon ice spikes out of the air, as well as much more. While having a staff or other channeling device makes it easier for him to use his Seraphic Artes, it isn't required. He can also bend water around himself to refract light, thus making him invisible.