To earn the Thorn Robber accolade, you must complete the first Tree of Thorns Respecification Trial.

• This badge or the Thorn Thief Badge are required to unlock Arbiter Leery as a contact for villains level 35-39.
• Prior to Issue 20, you could do any of the Tree of Thorns trials and receive this badge the first time the character chose Respecification as a reward.
• A previous version of this badge had alternate text before claiming the respec: "You have stolen the power of the Nexus of Thorns for the first time, earning a character respec. Talk to Arbiter Lupin in Nerva Archipelago to use it."