This auction is for X-MEN #78 published by Marvel Comics in 1972.  

 

In this issue, the X-Men battle Warlock, who reveals that he used to be Merlin the Magician; Thor cameo; reprinted from issue 30.  Script by Roy Thomas, pencils by Jack Sparling.  Cover pencils by George Tuska.

 

Using the guidelines at comicspriceguide.com/comic-book-grading, I’d say this comic is in “Fine” condition based on the descriptions they provided. 

 

I'm an individual collector selling off his private, well-preserved collection; I’m not a professional grader.  Combine shipping with my other comic book auctions to save on shipping!