A key issue noted for First appearance of Senyaka and First appearance of Spoor. The Uncanny X-Men #300 was published by Marvel Comics on May 1, 1993, as part of a series that began in 1981. Scott Lobdell writes, and art comes from Al Milgrom, Brandon Peterson and Dan Green. This 68-page issue features Wolverine, Cyclops, Storm, Beast and Jean Grey, among 31 characters cataloged on VerseDB.