X-Men, Vol. 1 #56b "Onslaught - Twilight of the Gods" is a vintage comic book published by Marvel Comics in 1996. Written by Mark Waid, it belongs to the Modern Age era of US Comics and features the popular superhero team, the X-Men. This single issue comic book, with a grade of 9.0 Very Fine/Near Mint, is intended for a general audience and is presented in color. It is a unique collectible piece for fans of the Marvel Universe and the X-Men series.