Madelyne Pryor
Madelyne Pryor was introduced during the acclaimed 1983 "Uncanny X-Men" run that saw long-time writer Chris Claremont pair with artist Paul Smith for a series of issues that would see the Jean Grey look-alike marry the retired X-Men leader Scott Summers (Cyclops).
Iron Man and Sub-Mariner
Iron Man and Sub-Mariner is a one-shot comic book published by Marvel Comics in 1968. It is notable for being the first Marvel title to be intentionally published for only one issue, as it existed to use up two half-length stories left over after Marvel began its expansion and the characters were to be given their own solo titles.