Per 
Item #:SCP-5054
Object Class: Keter
Special Containment Procedures:
SCP-5054 is to be kept in a two by two by two-meter metal box with military-grade 5-centimeter thick glass rectangular window spanning 1.5 meters in length and 1.0 meters in height. There are two 6 centimeter thick blast doors 1.0 meters in height and 0.8 meters wide as well as being spaced out by a 30 centimeter gap, giving enough space in between for a human to walk through. There should also be a small 30cm by 30cm hatch for tests that do not require a live subject. According to the special procedures manual, only one door is to be open at a time to prevent as many containment breaches as possible. There should be no fewer than two armed guards outside the cell specializing in close-quarters combat armed with a combat knife and a moss berg 300 at all times. Any visible damage to the glass should be reported immediately.
Outside the cell, there is a manual overdrive switch near the entrance that, when activated, will close and lock all doors on the inside, while enabling a safe key on the outside letting personnel level 3 or higher be able to enter and override the switch. When revoked, All doors will remain shut but unlocked to not let anything get out. The overdrive switch and safe key should be tested once per week to not allow a malfunction. If it does not work properly, it should immediately be reported for a diagnostic and re-work. SCP-5054 should be moved into a temporary two by two by two meter metal cube and have all testing cancelled until the override switch and safe key is back in working condition and able to run smoothly.
Because of this, there are four internal cameras inside the containment area. The first one has a view of the entrance, the second one is inside the cell, the third one is in the gap between the blast doors, and finally, the fourth one is facing the outside of the primary blast door.
Description:
SCP-5054is a dark, swirling rocky form that is continually moving and does not stay in one apparent shape. SCP-5054 has a gravitational effect on light and Loose objects. The anomaly has been seen to be able to regenerate, mold, and morph to sizes approximate to 1.32 meters in length, 1.1 meters in height, and 0.6 meters in width and no fewer than 0.4 meters in length, 0.3 meters in height, and 0.2 meters in diameter as well as many shapes or forms. So far, it has not been observed to have the capacity to stretch more or shrink less than these calculations when it is not exposed to humans. SCP-5054 has also been measured to travel at speeds up to 83 kilometers per hour with an acceleration of approximately 1.3 seconds.
The anomaly has shown some sentience, intelligence, and aggression towards humans as it floats around the room and attacking the glass and the secondary blast door in strong, quick bursts. X-ray scans show no internal structures inside the anomaly. High definition thumper scans show that SCP-5054 is completely solid and with three layers, with the outer layers moving and changing while the inner layer is stationary and bends to the outer ones. SCP-5054 is extraordinarily flexible, and some structures are appearing to have unusual radiation in spaced out chunks in the inner-most layer when tested with X-ray scans. Tests on the structure of SCP-5054 have concluded the anomaly to have a small amount of dark matter in its structure.
When SCP-5054 comes into contact with a human, it engulfs the subject. It takes full control over the human as well as increasing speed, strength, cell/body regeneration, durability, pain tolerance, and surprisingly, raises the subject's skill with any weapon that it comes into contact with. SCP-5054-2 is reported to sprint up to 53 KPH This is known as SCP-5054-2. In the case of an SCP-5054-2, It should be harmed, shot, and weakened until SCP-5054 exits the host. It then should be caught inside four jointing remote-controlled steel containers with an opening top. Each one is 100 cm by 100cm by 50cm meters long and carried by a minimum of four personnel per container. One-armed guard shall also carry an electro-magnetic emitter (EME), which has proven to stun SCP-5054's outer layers for a minimal amount of time. During this procedure, there should be absolutely no human contact with SCP-5054-2 until SCP-52551 has left the body.
The reason for this is that SCP-5054 has been seen to move through human contact into other hosts at surprising speeds through D-class testing. Through X-ray testing, when SCP-5054 gets somewhat bored with its human host or finds no more use for it, the anomaly will exit the host but puncture the lungs, liver, kidneys, and heart. Then once the anomaly leaves its host, the host should already be dead, while in some instances, the patient will die slower than usual as some post-SCP-5054-2 instances internal scans and X-rays have shown no sign of the heart being punctured or damaged.
Addendum SCP-5054 #1: "Discovery"
SCP-5054 was first discovered when a family of four was found dead in the Boreal forest, in the northern regions of the United States. They were observed to have been killed with very precise throws to the neck by heavily sharpened wooden and stone weapons, seemingly hand-made. The bodies featured dry blood around their neck, mouth, and vocal area, implying that the victims died slow deaths. More bodies were discovered in a 164-kilometer radius, killed by the same in-humane accuracy of the first victims, as well as the same sort of hand-made weapon. █ MTF squads were sent in to investigate inside the radius. However, only two and a half squads full survived the encounter and brought back SCP-5054 in a medium sized steel container.
Some survivors came back in shock and described the monstrosity and inhumanity of the thing they fought. They explained how it used its surroundings and the environment to kill them off with relative ease and its effective tactics in the forest to set ambushes for them. The MTF colonel said that their bullets would not slow down the monster, and whenever a patch of red would show, it would quickly regenerate.
Addendum SCP-5054 #2: "Regenerative capabilities"
SCP-5054's regenerative capabilities are still to be fully comprehended as it reforms mass by incredible cellular capabilities, or by some dark matter that miraculously joined or fused with some parts of SCP-5054's structure that could help in its regenerative ability, as previous testing shows.
SCP-5054 has been shown to stop and absorb small arms fire, from 9mm up to .315 Magnum rounds. with other tests, SCP-5054-2 has been seen to easily take a seemingly unlimited amount to the head and rarely grab them out from the air from a certain distance.
Assault rifles have shown to be able to damage and hurt SCP-5054, although the anomaly can quickly heal up and regenerate the lost patches of mass. What has tended to display the most proficient results have been 45 ACP rounds up to 7.62X36mm soviet rounds. SCP-5054-2 has shown to take some notice of these rounds when contacting with its skin, as well as sometimes absorbing the impact of the round with its hand, causing visible damage to the hand for a short amount of time.
The most effective caliber against SCP-5054 has been .50 BMG rounds. They have proven to be able to take off big chunks off SCP-5054, weakening it. Damage from .50 caliber guns has determined to take from 12-18 seconds to regenerate fully. Shotguns at close range have proven just as effective, and slug shotguns, like the 725, have shown incredible results against SCP-5054. SCP-5054-2 has had trouble with these types of munition, as no matter how many attempts it is given, all rounds shot have hit their mark. All tests conclude these rounds are unavoidable.
