Ghost

1. Echoing Apparition:

 - The base form of a ghost, an Echoing Apparition emerges from the lingering energy of a deceased being. It is a faint, translucent figure with minimal ability to interact with the physical world.

2. Whispering Specter:

 - Ghosts that evolve to communicate more effectively become Whispering Specters. They can convey messages and emotions through soft whispers, potentially influencing the thoughts and emotions of the living.

3. Ephemeral Wraith:

 - Some ghosts intensify their connection to the ethereal plane, evolving into Ephemeral Wraiths. They gain the ability to move through solid objects, becoming more elusive and capable of traversing barriers.

4. Chillbearer Phantom:

 - Ghosts that manipulate cold energies evolve into Chillbearer Phantoms. They can create drops in temperature, manifesting as chilling mists or frost, and may use this ability to affect the environment or frighten the living.

5. Luminous Haunt:

 - Ghosts exposed to sources of light evolve into Luminous Haunts. They can manifest bright, radiant auras or project spectral light, potentially blinding or dazzling those who encounter them.

6. Poltergeist Manifestation:

 - Ghosts that develop the ability to manipulate physical objects evolve into Poltergeist Manifestations. They can move and interact with the material world, often causing disturbances or creating physical phenomena.

7. Residual Memory Phantom:

 - Some ghosts evolve to replay significant moments from their past lives, becoming Residual Memory Phantoms. They exist as echoes of specific events, appearing during certain circumstances and reenacting scenes from their previous existence.

8. Dread Sovereign Specter:

 - Ghosts that accumulate power and influence among the spirit realm become Dread Sovereign Specters. They may command legions of lesser ghosts, possess advanced psychic abilities, and have the capacity to affect the emotions and thoughts of the living on a grand scale.

9. Ethereal Archon:

 - The ultimate evolution of a ghost, the Ethereal Archon attains near-deity status. These entities have transcended the boundaries between the living and the dead, wielding profound control over the spirit realm and potentially influencing the balance between life and death.

The ultimate Ghost that can wield both the power of life and death. Yet it seems to serve someone. Who might it be.