Blackguard Badge
From City of Heroes: Rebirth - Wiki
Description
You have helped defeat all the Signature Heroes in Recluse's Victory, making you a Blackguard.
How to Get
Defeat Ms. Liberty, Manticore, Back Alley Brawler, Positron, Synapse, and Penelope Yin in Recluse's Victory.
Note
The Blackguard badge is awarded to characters of the villain and rogue alignments. The same badge on heroes and vigilantes is called Redeemed Blackguard.