The standard stage of this challenge must be completed to unlock The Arkham Knight. Like all challenges, it has three stages of difficulty - Standard, Expert, and Nightmare. Each stage has 63 matches, divided into 5 challenge battles. There is no particular order for the battles, but the whole stage must be complete before it will be reset to a higher difficulty level.
- The "title" of the challenge refers to its character as "Arkham Knight", and the description refers to him as "Arkham Knight The Arkham Knight", despite that his special and super cards refer to him as "The Arkham Knight Arkham Knight".