Warning: SPOILERS for Storm & The Brotherhood of Mutants #1The fellow X-Men realize Storm is better on her own.
Storm first appeared in Giant-Sized X-Men #1 in 1975, alongside other popular characters like Nightcrawler, Sunfire and Wolverine. Recruited by Professor Xavier himself, Ororo Munroe was already helping others long before she ed the team; she regularly brought rain to deserts and water to villages suffering from terrible droughts. On her own for many years, Munroe found many friends within the X-Men's ranks, but after multiple adventures, characters (and readers) realized that the character is, simply put, too powerful to be on a team.
Storm Doesn't Need The Rest Of The X-Men
In Storm & The Brotherhood of Mutants #1, written by Al Ewing with art by Paco Medina, the present ruler of Arakko (newly-named Mars after the X-Men claimed the planet as their own) sets out to defeat Mr. Sinister; in the wake of Sins of Sinister #1, the mutant villain has seemingly taken over the entire planet. Storm leads a team to infiltrate Sinister's facility, destroy a Moira MacTaggart clone and hopefully reset the timeline. "A whirlwind strong enough to tear up the living rock...remind me why you needed the rest of us?" her teammates ask. "She doesn't" is the only proper response.
Storm is indeed tremendously powerful, and her abilities, when used properly, can make short work of the X-Men's numerous villains. Some of the more savvy enemies of the team often find a way to knock Storm out of the fight first, either through a machine deliberately designed to avoid her powers or trap her in such a way as to trigger her claustrophobia (though very few villains know this weakness). Storm's powers are somewhat muted while in space, but she can still use her abilities to a degree.
Even in 2023, placing Storm on Mars is a classic writer strategy to remove Ororo from Earth when she is needed most. Storm has missed out of many events or even singular enemies simply by the writers placing her on another mission (or just omitting her from the story without explanation at all).
But Storm is a leader first and foremost, and while this X-Men team member can still fight on her own, she cannot lead a team of one.
