Onimar Synn

Onimar Synn
Onimar Synn from JSA #24. Art by Andrew Robinson.
Publication information
Publisher	DC Comics
First appearance	JSA #23, (June 2001)
Created by	David S. Goyer (writer) Geoff Johns (writer) Stephen Sadowski (artist)
In-story information
Species	Demon
Place of origin	Seven Hells
Team affiliations	Wingmen of Thanagar
Notable aliases	Sin-Eater
Abilities	Advanced control over Nth metal allows superhuman strength and stamina, invulnerability, and control over gravity, electromagnetism and the strong and weak nuclear forces.

Onimar Synn is a fictional extraterrestrial demon, a comic book character published by DC Comics. He first appeared in JSA #23 (June 2001), and was created by David S. Goyer, Geoff Johns, and Stephen Sadowski.

According to legend, Thanagar was plagued by seven devils at the dawn of its history. None was more feared than Onimar Synn. Eventually he was defeated by the legendary hero Kalmoran and imprisoned in a vault of Nth Metal where he would remain for millennia. Countless years later, Thanagar grows powerful during his imprisonment, but is eventually devastated in a war with the Tormocks. During the rebuilding, Synn emerges and slaughters the ruling high council. He then sets about taking over the planet by gaining control over as much Nth Metal as possible. Through the metal's psychoreactive properties, Synn gains control over not just a unique metal, but the planet's racial memories as well.

Synn is opposed by the Hierophants, rebels made up of native Thanagarians as well as races that Thanagar had conquered over time. Transporting Kendra Saunders to their planet, she brings Hawkman back from the dead. Armed with a Nth metal gauntlet, the "Claw of Horus," Hawkman and the JSA battle Synn's zombified soldiers. However, the heroes are quickly overwhelmed and captured. Eventually, the team breaks free and faces Onimar Synn in gigantic form. Pulling Nth metal from all around to add to his size, Synn is so large that even Atom Smasher struggles to match his height, his new control over the fundamental forces of the universe also allowing him to disable the rest of the Justice Society, such as using his command of electromagnetism to negate the Flash's frictionless aura that protects him from sustaining damage at top speed, or severing the bonds that hold Sand's atoms together. However, Hawkman and Hawkgirl are able to defeat him by coming together and acknowledging their love. Their souls are so strong that they can disrupt his Nth metal body through the Claw of Horus.