You can choose from six Nightfarer classes when you begin your Nightreign adventure, but the Duchess and Revenant are hidden behind some easy steps.

Play her lyre to summon fallen family to rally in battle. Choose to summon Helen the agile page, Frederick the burly cook, or Sebastian the doting butler for aid in fights. Release vengeful ire to make oneself and nearby allies immortal. Revives near-death allies and transforms family into immortal warriors.

The best Revenant build in Elden Ring Nightreign changes based on what kind of randomized loot you find on a run. Every expedition is different, which means you have to be flexible as you race toward your encounter with the Nightlord. The key is to know what relics to bring into a run and what items to look for as you clear out the map.