Fire Thorn Caster Badge
From City of Heroes: Rebirth - Wiki
Description
The Circle of Thorns fears to disobey you.
Gladiator Classification
This Gladiator is classed as a minion.
How to Get
The Fire Thorn Caster Gladiator Badge is earned by earning the Defender of Truth badge.
Note
This badge is only awarded to characters of the hero or vigilante alignments. Although credit for this badge may be earned by villains or rogues, the badge will not be awarded to a character until they change alignment.