Revenge Challenges are a class of multiplayer challenge under the PVP category. Each rank of each challenge requires the player to accomplish tasks after being wounded or killed by other players. When each rank is completed, the player earns XP and a title. The main game challenges are unlocked at multiplayer rank 34, but the first rank of the "Kill your last killer Tomahawk" challenge is available from the beginning.
There are three challenges with the standard game and an additional Tomahawk challenge is added by the Legends and Killers DLC. Two of the challenges have a single rank each while the others have two ranks each, as detailed below. Challenge tasks can be completed in Free For All (FFA) and Gang matches as well as Stronghold.
Kill your last killer
Kill the same person that last killed you
Holds a Grudge
Kill the same person that last killed you 3 times without dying
Kill your last killer's mount
Kill the horse of the player that last killed you
Paste of Revenge
Get wounded to critical, but survive 5 times in a single life
On Life Support
Kill your last killer Tomahawk
Kill the same person that last killed you, with a Tomahawk
Hack and Slash
Kill the same person that last killed you 3 times with a Tomahawk without dying