Read more about Candra at: Wikipedia

Official Site: Marvel

The Externals are a group of fictional characters appearing in American comic book published by Marvel Comics. Considered a rare subspecies of mutants, most of them were X-Men antagonist. The original, unused name for the group was to be The Prophets, as seen on the back of the Sunspot & Gideon trading card included with X-Force #1. The characters first appeared in X-Force #10 (May 1992).

The Externals are all mutants with the additional gift of immortality and, as expressed by Cable, they play an important role in Apocalypse's rise to power at least in one future. Their true origins are scattered throughout history, but it is known that they all share a psychic link with each other that separates them from other immortals. This psychic connection allows them to not only sense each other and their whereabouts, but allows them to summon each other at will from great distances. They also can sense when one rises from the dead and when one is killed. Saul, Absalom, Gideon, Nicodemus, Burke, Selene, Candra, and Crule (to a lesser extent) formed the self-fashioned "High Lords", bent on playing power games and manipulating events behind the scenes. Crule was employed as an enforcer and assassin for the other High Lords, while Candra and Selene preferred to play their own schemes separately and did not take any part in the High Lords' gatherings.

Each External was claimed to represent an intangible concept:

At one point, X-Men regular and former New Mutant Cannonball was declared an External by Cable, after he was killed by Sauron. His revival was sensed by the other Externals who declared that he represented hope. Later, Selene betrayed her fellow Externals and despite the efforts of X-Force, she managed to slay them by absorbing their life forces. Selene ultimately escaped, but not before summarily dismissing the assumption that Cannonball was an External, calling into question Cable's conclusion and the reasons for it. Yet, later Cannonball was shot three times through the chest by Reverend Stryker's Purifiers, and was back up and around in a matter of hours. When asked about it, Hank McCoy mentioned Cannonball's status as an immortal again, though it is not sure if he was joking or not. Originally, Apocalypse was not considered to be External, though sometimes referred to as one. His longevity is believed by Selene to be mostly due to technological means, although Apocalypse was already many centuries old before his first encounter with the technology he would later integrate himself with. Selene herself needs to maintain her supply of life force that she drains from human victims.

Candra has not been a contender in any CBUB matches.