This expansion adds two new factions, the CHOAM and the Richese, to the Dune boardgame, along with 2 new variants.
This expansion also introduces Leader Skills, which let you assign a skill like Mentat, Swordmaster of Ginaz, or Prana Bindu Adept to one of your leader discs. It also included Advanced Stronghold Cards, which give you a "homefield advantage" when battling in a stronghold you control.