First Appearance: Wonder Woman 183 (1969)
Creators: Mike Sekowsky and Dick Giordano
Abilities: A master of chaos and doubt, this immortal Olympian wields all the inconceivable power of the Old Gods, and literally lives to stir the pot.
Backstory: Based on the Greek mythological figure, Eris (also known as Strife) is the Goddess chaos and discord, daughter of Nyx (or Zeus, depending on the tale), and creator of the mayhem-inducing Golden Apple of Discord which started the infamous Trojan War.
Unsurprisingly, Eris would make her comic debut as a venomous, mettlesome figure, able to confuse and deceive with illusions, spells, and telepathy, aiming to sew the seeds of distrust and bitterness by tampering in the affairs of others, particularly Diana’s.
She has come to be known as one of the Children of Ares, along with Phobos and Deimos, but Eris was first known as sister to the God of War. She first joined her brother, Ares, in an attack on the Amazons, cursing Queen Hippolyta into a coma-like sleep, and would continue to wreak havoc across the comics landscape—kidnapping Diana, nearly killing Lois Lane, causing fights among UN dignitaries, and helping Circe to start a war among the pantheon, which ultimately cost Eris her life (since she made the mistake of trusting Circe)! She landed in the Tartarus as a result, but her spirit resurfaced years later when she would escape the infernal realm with her Deimos and Phobos, and possessed the body of Gotham City villain, Poison Ivy—until Diana is called to help restore order and defeat the deific antagonists.
Like many characters, Eris has been redesigned several times, and was most recently depicted as a sarcastic young woman, a less overtly evil entity, who feeds on acts of dissonance and chaos, and once again, is known as Ares’ sister.
Gods of Gotham
Wonder Woman (2011)

Additional Images: