If your holy cause has not yet been completed, you can regain 1d4 hit points + your charisma modifier when you are depleted to 0 HP. You can not use this ability if you have strayed from your holy cause or if you have used this feature before and not completed a long rest since then.

You don't require food or drink, though you still have to complete short and long rests.

A foresworn's holy cause is the cause a foresworn died defending and is now dedicated to in their new life.You can choose one from the options below or speak with your dungeon master for a homebrew one. If your dungeon master believes you have strayed from your holy cause, they may tell you to become a fore-gotten. Fore-gottens lose all the bonuses from their holy causes and usually become evil. Also, without their holy causes, their anchors to the material plane, a fore-gotten will lose their duty bound trait.

Due to your incorporeal nature, you can move through small objects (not walls) as if they were difficult terrain and your weapon attacks can bypass half cover and three-quarters cover with disadvantage and full cover with disadvantage and no bonus on your attack or damage rolls.