Lionheart

A creature of the Modern Age, Lionheart burst onto the scene in 2006 courtesy of Chris Claremont and Steven Cummings in the pages of New Excalibur, rubbing shoulders with heavy-hitters like Captain Britain, the Juggernaut, and Alison Blaire from the very start. With appearances stretching into Avengers Classic and Avengers Assemble: An Oral History of Earth's Mightiest Heroes, this Marvel character clearly carries a reach beyond a single corner of the universe. A relatively rare presence in the catalog at twelve appearances, Lionheart is the kind of discovery that rewards the dedicated reader who loves digging into the deeper cuts of Marvel's rich British and Avengers-adjacent mythology.