Question: what superhero had an adversary who's birthplace is a fictional country appearing in American comic books published by DC Comics, the adversary first appeared in "Batman: Vengeance of Bane"  ?
Sentence (from "Mr. Freeze"): Mr. Freeze (Victor Fries) is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman.
Relevant evidence: No