Lionheart



Kelsey was killed by Thunderball and resurrected by Captain Britain. She then had a brief stint with the Avengers.

Origin
Kelsey Leigh was originally a single mother of two children living in South-East England. She worked as a English Literature and History teacher. Back when she was married, thugs invaded her home. One of them attempted to rape her: she fought back, hurting him and he cut her face with a broken bottle in revenge, scarring her permanently. Meanwhile, her husband, Richard, was too paralyzed with fear to help her. His guilt over that incident led to the dissolution of the marriage.

One day her and her family were involved in a brawl between the Avengers and the Wrecking Crew. When Captain America and Wasp was knocked unconscious Kelsey used his shield to defend him from a death blow delivered by Thunderball. Despite blocking the blow, the force of the impact caused her severe internal injuries and she died en-route to medicial facilities. She awoke in a ring of stones and was visited by a vision of Captain Britain, who was then ruler of Otherworld, and his wife Meggan and offered her the choice: The Amulet of Right or The Sword of Might. As she desperately wanted to see her children again she chose the sword as a means of defending her children. However, this was the path of violence and as a result the only way she could see her children was at the cost of their lives. When she returned to Earth and took the mantle of Captain Britain, she helped the Avengers defeat Morgan Le Fay and her forces. Kelsey was shown to be much more violent in her methods than her predecessor. When 're-united' with Thunderball, the man who killed her, she impaled him on her blade, apparently killing him. She joined the Avengers so that she would be close to her children who were now in their care.

Power and Abilities
Kelsey's body has been mystically altered to grant her superhuman strength, agility, endurance, speed, reflexes and flight. Sword of Might grants her Superhuman physical attributes, force field generation and energy bolts.

Weapons
Captain Britain wields the the Sword of Might, a mystic weapon that is invulnerable to all harm, capable of cleaving through any substance up to foot-thick steel. It serves to channel mystical energy so she never tires; this energy can also be used for destructive blasts our protective shields.