The power to possess or have traits of, or is a Black Shuck. Variation of Black Dog Physiology.
- Old Shuck, Old Shock or Shuck Hound Mimicry
- Shuck the Dog-Fiend
- Fiendish Hound
A user with this ability either is or can transform into a Black Shuck, a large black dog the roams the British isles and descriptions of the creature's appearance and nature vary considerably; it is sometimes recorded as an omen of death with malevolent flaming eyes or a single eye that has been red or alternatively green. They are said to be of immense size, and seen in churchyards of night.
They are the meanest and most vicious of the Black Dog breeds.
- Ghost Physiology/Demon Physiology (malevolent ghost)
- Hellhound Physiology (all; variation of one)
- Unnatural Size
- Size Manipulation (between that of a large dog and that of a horse.)
- Vapor Manipulation
- Black Dog Physiology
- Canine Physiology
- Demon Physiology
- Ghost Physiology
- Hellhound Physiology
- Spirit Physiology
- Black Shuck (English Folklore)
- SCP-023 - Black Shuck (SCP Foundation)