X-Men brand became one of the most valuable assets of Marvel

Since the 1980s, the popularity of Uncanny X-Men and the birth of the business specialized stores comics led to the launch of a series of publications eat together, the "X-Books". The New Mutants firstly in 1983, introduced a new group of teenage X-Men took over Xavier School. In 1985, the former X-Men gathered under the name X-Factor, with the revival of Jean Grey controversial. 1988 is a series dedicated to Wolverine, focuses on his struggle between personal honor and the past. In 1987, Marvel added a special team Excalibur, Rachel Summers, Nightcrawler, Shadowcat with superhero Captain Britain and British Meggan. Because there are so many publications dependents, X-Men brand became one of the most valuable assets of Marvel, there is the legendary X-Men became too troublesome circumstances and then expanding to the point hardly keep up. In this decade, the success of the X-Books already affecting other popular brands, such as Spider-Man (Spider-Man), Superman (Superman), Batman (Batman), and developed into a linker "kinship" between the episodic comic series.

A controversial episode to Professor X is the migration into space in 1986, after he had been serious injuries and can only survive thanks to the technology of the Shi'ar race, and not could return to Earth by the halo of fire emanating from the sun Ant-man Kostuums
. The most controversial event was the takeover rival school Magneto replace Professor Xavier and expanding membership (this is the main reason that the original X-Men team decided to establish X-Factor and back on covert operations - they are the new X-Men team was "betrayed" professor Xavier and Magneto hands with).

The excess of the story about the X-Men have led to consequences that circumstance between the X-Books intertwined (also known as "X-Overs"), sometimes for several consecutive months. First Mutant Massacre (pogroms X-Men) 1986, conducted by the organization bloodthirsty mutants Marauders, the Morlocks and destroyed the tapes seriously wounding many X-Men related (injuries of Kitty Pryde and Nightcrawler enabling authors to send them to England to join Excalibur) Animation Style Kostuums
. This section introduces Mister Sinister's Marauders leader, an evil mutant genetics expertise and is the focus of many storylines related accessories. The publication also provides Sabretooth, a former rival martial arts hero Iron Fist, in the world of X-Men and Wolverine's enemies, with the suggestion that the two had a relationship in the past Anime Nederland
.

During this period, Claremont launch a new team of X-Men including Storm, Rogue, Wolverine, Colossus, Havok and several new characters:

Magneto, the group's former rival, became the leader of the X-Men and The New Mutants behalf of Professor Xavier when everyone thought he was dead. Magneto can not be discarded after one of those rescued was a member of The New Mutants (Douglas Ramsey, called Cypher), and continues to be a number one villain.

Dazzler (Alison Blaire), a former music hall singers can sound energy absorbed and converted into the effects of light, such as laser. Dazzler was introduced in the books in the early years, then her own appearance in a comic series in the years between.

Psylocke (Betsy Braddock), in the comics Captain Britain is a Briton with psychic ability, she changed several times the capacity of the latter years, and until her body swap with a Japanese woman into a seductive female boxer sexy, it becomes capable of controlling objects.