His life changed irrevocably when the criminal Reaver attacked the facility. Fleeing for his life, Brian crashed his motorcycle and was mortally wounded. At the brink of death, he experienced a vision of Merlin and his daughter Roma, who offered him a choice between the Sword of Might and the Amulet of Right. Rejecting violence, Brian chose the Amulet, demonstrating moral worthiness. He was transformed into Captain Britain, champion of the United Kingdom.

Initially inexperienced and uncertain, Brian relied heavily on a technologically advanced suit and Merlin’s guidance. Over time, he confronted numerous threats, including the assassin Slaymaster and the reality-warping Fury, a cybernetic agent of annihilation. His early career was marked by self-doubt, but also by gradual growth into a confident protector.

Brian’s connection to Otherworld deepened as he learned of the Captain Britain Corps, an interdimensional organization composed of his counterparts from across the multiverse. His father had once served as one of its greatest champions, and Brian came to inherit that legacy. Following the destruction and reconstruction of his body by Merlin’s agents, Brian’s powers became intrinsically tied to his confidence and sense of purpose rather than external devices.

Brian eventually became a founding member of Excalibur, alongside Meggan, Nightcrawler, Shadowcat, and Rachel Summers. The team operated as a uniquely British counterpart to the X-Men, frequently dealing with interdimensional and mystical threats. During this period, Brian’s relationship with Meggan evolved into a deep and enduring partnership.

Brian temporarily relinquished the mantle of Captain Britain to his sister Betsy, but her tenure ended tragically after severe injuries inflicted by Slaymaster. Brian resumed the role, solidifying his commitment to both his family and his responsibilities.

Throughout his career, Brian repeatedly struggled to balance his scientific ambitions with his heroic obligations. He left and rejoined Excalibur multiple times, ultimately proposing to Meggan during a period of relative peace. However, that peace was short-lived, as threats from Otherworld and across realities continued to demand his attention.

During a catastrophic conflict involving the Mastermind computer—a sentient construct created by his father—Otherworld fell into chaos. Brian led resistance forces, rescued Roma from control, and reclaimed the Sword of Might. By uniting it with the Amulet of Right, he achieved his full potential, ascending to the role of ruler of Otherworld and protector of the Omniverse.

In later years, Brian served with MI13 and aided in defending Britain against supernatural invasions, including Skrull incursions during the Secret Invasion. His connection to the multiverse remained central, particularly during events such as the collapse of the Captain Britain Corps and incursions threatening all realities.

Following the Krakoan era’s restructuring of mutantkind, Betsy Braddock assumed the mantle of Captain Britain once more, while Brian adopted the title of Captain Avalon. Despite this shift, Brian remained a pivotal figure in Otherworld’s governance and continued to act as a guardian of reality itself.

Now a seasoned monarch, husband, and father, Brian Braddock stands as one of the most important multiversal figures in existence—no longer merely Britain’s champion, but a king entrusted with the stability of infinite realities.

Brian’s powers have evolved over time from reliance on external equipment to an intrinsic mystical connection. At peak capacity, he has demonstrated the ability to battle multiversal threats, survive extreme energy assaults, and traverse dimensional barriers.

Limitations: His power levels are partially dependent on his confidence and emotional stability. Psychological distress or doubt can significantly reduce his effectiveness.