Web of Spider-Man #25 (1987)
“Beware the Stalker From the Stars!”
Writer: Larry Lieber
Artist: Larry Lieber
A war monger named Xanja from another planet gets hold of a powerful weapon, but on a conquest, the weapon is accidentally diverted to Earth. When he goes to retrieve it, another being named Vaalu from his world comes and stops him. Meanwhile Spider-Man’s caught in the middle.