Madoc Blade appears in the 2000AD story Killer, created by Steve Moore and Staz Johnson.
3249AD and humanity is a third class minority in a vast alien empire. In the Great Arena of Gore, convicted criminals are made to fight gladitorial combat before a viewing audience.
Legendary warrior ‘Mad Dog’ Madoc Blade was a Terran murderer who carved himself a reputation as on the most ruthless killers to ever stalk the arena.