How to Get
Gladiator Badge Unlocked
When you earn this badge, you will unlock the Nemesis Soldier Gladiator badge.
For the literary pedants out there, they will notice there are two valid spellings of the origin word "Corrupt" - both corrupter and corruptor are valid uses with the same definition. It appears however that Corruptor refers almost exclusively to the City of Villains Archetype, the Corruptor, while the use of Corrupter seems limited to this badge only.