Wandering Soul

You spend a week to prepare yourself to die, learning the art of turning yourself into a wandering ghost for the rest of eternity. If you drop to 0 hit points at any point for duration, you automatically fail all death saves, but you live on after death. You become a “ghost”, and gain the features of a Boneless Half-Dead (Dr. Flumph's Ultimate Adventurer's Tome) in addition to your normal racial features. You now do not age, taking on a physical appearance of yourself at any point during your lifespan. You retain all features from when you were alive. If you drop to 0 hit points as a ghost and fail all death saves, your soul permanently dissipates. You cannot be revived or resurrected by any means, both as a ghost or if you die as a ghost. If your body hasn’t already been cremated or disintegrated by the time you die as a ghost, your body erupts into flames when you die, completely disintegrating it.