This expansion also introduced PvP modes and seasonal Challenge Leagues, temporary game realms allowing players to start characters within a fresh economy alongside new gameplay content.
Sacrifice of the Vaal (released March 5, 2014) explored the history of the first civilization on Wraeclast, including special Vaal dungeons that pop up randomly throughout the game levels which provides the player specialized loot related to the Vaal, and access to their former Queen as a Bonus Boss.
