Per 
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: SCP-XXXX is to be kept in a 5m×5m×4m concrete containment chamber (20cm thickness on all sides) at all times. The only entrance into SCP-XXXX's containment chamber, is a titanium reinforced airlock mechanism with anomalous activity detection that automatically goes into lockdown if it detects any signs of anomalous activity.
Entity is permitted one carcass of Bovine or Lupus nature (Entity's choice) per 24 hours. Entity is to be under supervision of at least 2 level 4 clearance or higher while "consuming". Do not give the subject more than described, as the Entity can increase drastically in strength and speed if "overfed".
Description: SCP-XXXX is a humanoid entity that is shrouded in a thick black smoke, it appears to be male, wearing a luxury suit from the early 1940's, and a dark black bowler cap, and a cane with what appears to be a human skull as the grip. Upon further inspection, the entity seems to not have a bottom half, or eyes.. still, he is able to levitate, "see", and "hear" using the smoke that emanates around him.
Another good note is that he has very elongated hands and fingers, with strange markings that look like tattoos, but upon experimentation, are just incredibly dark melanin cells in complex patterns.
The Entity's way of killing is by manipulating his smoke into orifices of the body, and dissolving the intestines and other organs with fast moving micro particles of iron and carbon, after expiration of the victim, he will occasionally proceed to use the body as a "puppet", The victim would now be classified as SCP-XXXX-1.
These instances are stronger and faster than an average human being, they will attempt to break SCP-XXXX out of its containment chamber at all costs.
It is still unknown how he manipulates the smoke around him, but samples from the entity's smoke contain traces of carbon, iron, and [DATA EXPUNGED], which is lethal to all humans that touch it
The Entity is also capable of using a small portion of it's smoke to seemingly "teleport" into any area that its smoke can get into.
Addendum:SCP-XXXX-1-A Following results from experimentation with D-class personnel; all D-class testing with SCP-XXXX is forbidden until further notice.
Also, it seems that he only has a finite amount of "smoke" around him, he can only use the smoke when he's moving his hands, and he can not use smoke that has been trapped in an electromagnetic field.
