Monster Mashup: X-Men #40

Because the characters exist in the public domain, there have been countless comic book iterations of classic horror icons Dracula and Frankenstein, including “official” versions of both characters which exist within the respective Marvel and DC Universes, versions which interact with each company’s superheroes. But through the years, those heroes have also encountered and battled one-off iterations of the horror monsters, independent of the “main” characterization.