X-Men Classic #66

X-Men Classic #66 was published by Marvel Comics in 1991 as part of a long-running series dedicated to reprinting early X-Men stories with updated framing sequences and new cover art. The issue specifically reprints material originally found in 1971's X-Men #66, which marked the final issue of the original X-Men run before the series shifted to a reprint-only format for several years. This reprint series served as a bridge for readers of the burgeoning 1990s X-Men boom to experience the formative Silver Age stories that established the foundational character dynamics of the team.

The cover art for this issue was produced by Mike Mignola, an artist who would later achieve immense acclaim for creating Hellboy. Mignola brought his signature atmospheric, shadow-heavy style to the X-Men, providing a stark and moody aesthetic that contrasted with the more traditional superhero house styles of the era. The inclusion of new covers by prominent artists like Mignola was a primary selling point for the Classic line, allowing the publisher to market historical reprints to a contemporary audience with updated, high-quality illustrations.