Cap Britain has always been a character I've known about but in recent years I've really gotten interested in him (I like all his unique uniforms). I could have sworn years ago his mutant power was derived from Ley Lines or e different realities/dimensions rubbing together or something like that. I remember his powers didn't work outside of Europe or something and he needed a battery if he wanted to travel outside the country. I'm not sure but I could have sworn he was a mutant.

No he was never a mutant, but his brother and sister were, Brian's powers are magic based

You sure?

You sure?

@fACEmelter88: All to do with Excalibur and Merlin.

k then who am I thinking about any clue? Powers that were based on friction between different universes/dimensions and had to wear a battery at one point, had a force field as well as strength and flight.

AND THAT MAKES NO SENSE! Psylocke is his twin sis and she is a mutant soooo why isn't he?

His abilities were powered by the friction between realities, which were focused around the UK of each reality by Merlyn's tower, and his suit acted as a focus, and later a battery for when he moved too far away from the tower and later when the tower was destroyed. But none of that makes him a mutant - it was just how his magical abilities were powered. As for the twin thing, first, he and Psylocke are fraternal twins - they aren't identical, and so one can be a mutant and the other not quite easily as they got different genes from their parents. Second, there's a question hanging over whether Betsy and Jamie are actually mutants. No one has ever scanned Jamie with a mutant detection device to confirm him being one - they just assume he is because Betsy is. Betsy has set off mutant scanners, but no one scanned Betsy until after she joined the X-Men. Roma needed Captain Britain to team up with a specific set of individuals, most of them X-Men, in order to stop Necrom, and she openly admitted to manipulating events to forge ties between Brian and the X-Men so Excalibur could eventually form. Getting Betsy to join the X-Men was the thing that brought Brian into contact with the X-Men, and it's entirely within Roma's powers to make Betsy show up as a mutant on scanning devices, even if she wasn't one.

Captain Britain was not a mutant when he first came out and he never should be.

@fACEmelter88 said:

k then who am I thinking about any clue? Powers that were based on friction between different universes/dimensions and had to wear a battery at one point, had a force field as well as strength and flight.

AND THAT MAKES NO SENSE! Psylocke is his twin sis and she is a mutant soooo why isn't he?

You expect comic books to make sense??? ;)

Psylocke was an after thought. When she first appeared it was as Captain Britain's twin sister who just so happened to have some minor telepathic & precognative abilities. She wasn't introduced as a mutant. However, she became associated with the X-Men & therefore her story & character were expanded upon... but her twin brother remained the same with mystic connections to Britain. So it was a creative accident that she is a mutant but he isn't.

@lokiofmidgaard: So you think Roma manipulated Betsy's genes to make her a mutant? Velly intellestink

@Thunderscream: Can't say for sure she did, but it's certainly within Roma's power to do so (remember she made the X-Men invisible to electronic detection for a while, for as long as it suited her), and she certainly had motive to do so. And compared to the other manipulations she has admitted to, it wouldn't even be one of her most major manipulations. She needed Excalibur to come into existence, with the exact original members who formed it - we know she was directly involved in faking the X-Men's deaths, an event which gave the five Excalibur members a shared motive for coming together. She made sure Colossus was with the X-Men, taking him from Scotland - yes, he helped against the Adversary, but this also meant he wasn't around when Excalibur formed, as his presence might have stopped things going the way she wanted (he might, for example, have stopped the Technet - see below - or filled Captain Britain's role as team powerhouse, making Brian less likely to stick around). We know she was somehow behind Psylocke being with the X-Men, to forge ties between them and Captain Britain, and to ensure the X-Men's apparent demise would put him in the right emotional state for Excalibur to form. She admitted to jinxing Brian and she made him suffer watching his sister die so Meggan, unsure of how to help him, would seek assistance; Roma confessed to creating a vision of the Phoenix for Meggan to see at just the right moment, prompting her to visit Muir Island for that help, and sent the Technet to Muir to capture Rachel there, even though Rachel had not escaped from Mojo yet - and so the Technet took Kitty and Meggan instead, pushing Brian and Kurt into working together. We were told Roma gave Kitty and Kurt a shared dream about the Phoenix, deliberately to rekindle a psychic link to Rachel, which prompted her escape from Mojo at the right time and ensured the returned to Earth in Britain rather than the USA. All of this is stuff Roma admitted to or we saw her do. So you've got to wonder what else she had a hand in, and just hasn't confessed about. Kitty and Kurt needed to be away from the X-Men and in Britain for the team to form - did Roma somehow arrange for them to be injured at the right time, so they would be convalescing at Muir? Did she stop Meggan from finding her family after the Jaspers Warp ended, so that she'd hang around London where Brian could meet her? Psylocke's powers originally emerged only in adulthood after she was mind-controlled by Dr. Synne, an agent of Mastermind, who was himself built by Sir James Braddock on Merlyn's instructions - so was it coincidence that Synne triggered her mental powers, without which she'd never have joined the X-Men?

And if all this seems Machiavellian, remember that Roma's father, Merlyn, had planned from before Brian and Betsy were born to reach the point where Excalibur would defeat his foe Necrom. He doubtless had contingency plans in case specific elements went wrong, but he's been shown to behind Brian's development as a hero every step of the way, and if he was willing to make that effort and manipulate Brian so much to shape him into the necessary tool, then why would he leave the rest of his pawns' development to chance?

Why isn't Brian a mutant... the same reason Graydon Creed isn't a mutant

Well if you want to get real technical about it all forms of life are mutations so in that sense he is, but as far as the comics are concerned mutations have always been random at best, like the aforementioned Greydon Creed who despite both his parents being mutants (Sabertooth and Mystique) he is completely human, Luna (Daughter of Quicksilver and Crystal) was also completely human prior to being exposed to the terrigen mists

@fACEmelter88:

Captain Britain, had a choice between picking a sword or an amulet. The Reaver wanted to kill brain and Merlin and his daughter Roma gave him the choice. He pick the amulet which then changed him in to Captain Britain and was give a staff to protect him self with.

Later on the staff became a sceptre and finally the staff was Incorporated into captain Britain's suit.