Name: King Gwyn
First Appearance: Wonder Woman #776 (2021)
Creators: Micheal Conrad, Becky Cloonan, Jordie Bellaire, and Paulina Ganucheau
Abilities: Fae magic. Can place people to sleep by blowing on them. Commands an army of the fae. Spear haver. Operates on fairy logic. The ability to freely travel across all planes and worlds in the multiverse and beyond.
Backstory: Formerly the high fae leader of the royal battalions of Elfhame. King Gwyn claimed the throne when his queen was tragically murdered by the Roman god Janus despite the objections of the queens sister Argona.
Declaring himself to be acting for his home and people, King Gwyn would rouse their lands armies and begin kidnapping children from across realities, replacing them with changlings who would establish beach heads in other worlds, while the abducted children would be drafted into the fae armies to fight for their cause.
For King Gwyn was driven by a desire to have his revenge upon the queen killer, and a desire to see his people and land safe. Both goals in his mind being best accomplished by making Elfhame an expansive empire which would spread across realities, conquering worlds in pursuit of the murderer while at the same time ensuring that Elfhame would never fall.
Aided by his brother Glyndwr, King Gwyn would stop at nothing to accomplish his goals. Goals which were muddied by the small detail known to few that Janus was carrying out this murder spree across realities in a guise meant to make her look like Wonder Woman.