Per 
Object Class: Keter
Special Containment Procedures: SCP-4301 is to be placed in a 50m X 50m X 50m airtight containment cell of 10-inch thick steel. Cameras should be placed throughout the cell to monitor SCP-4301's movements and changes of form. Damage on the interior and exterior of the cell must be checked on a monthly weekly basis.
Personnel entering SCP-4301's containment cell may not interact with it unless authorization of no less than Level 3 clearance is allowed.
Description: SCP-4301 is an anomalous entity that possesses the ability to change its shape, volume, mass, density, as well as its chemical structure. Scientists currently believe that its abilities are unlimited, prompting no known way of harming or terminating SCP-4301. SCP-4301 changes form very rapidly ranging from twenty-four hours to one hour.
SCP-4301's forms seem to be random with no pattern but frequently changes into a bipedal humanoid entity approximately two meters with serrated fingers on its right hand. SCP-4301 has the ability to speak in the language any personnel speaks.
SCP-4301's behavior is docile until it comes in contact with any living creature. When in contact, SCP-4301 becomes friendly and begins to talk to the subject. If the subject harms SCP-4301 in any way, whether verbally or physically, SCP- becomes enraged and physically harms the subject until the death of who harmed it. It then proceeds to ███ the subject (Note: 50 personnel were terminated this way). SCP-4301 then changes form and goes to sleep.
Addendum 01: Discovery
SCP-4301 was discovered when reports of hunters going missing and anomalous entities being sighted attracted the SCP Foundation. Mobile Task Forse Zephyr was sent to investigate. When SCP-4301 was found, guns were pointed at it, resulting in the death and ██████ of half the task force.
Addendum 02: SCP Interactions
Four months after SCP-4301 was contained, personnel began testing SCP-4301 to other SCP's in the facility. Containment Breaches resulted in the tests to be prohibited.
Test Log: 4301-01:
Subject: D-139778
D-139778 was ushered into SCP-4301's containment cell (Note: SCP-4301 was in the form of a mechanical arachnid) and was told to approach and interact with it in a friendly matter.D-139778 interacted with SCP-4301 and was not harmed in any sort of way. After five minutes, D-139778 was told to leave the containment cell and was given
Test Log: 4301-02:
Subject: D-115673
D-115673 was given a machete and was ushered into SCP-4301's containment chamber (Note: SCP-4301 was in the form of a quadrupedal fish creature). D-115673 was instructed to encounter SCP- and attack him with the weapon. When D-115673 encountered SCP-, he began to swing the machete at it.
After thirty seconds of D-115673 attempting to harm, SCP-4301 became enraged and ripped the head of D-115673 using serrated jaws in its mouth. SCP- then ███ D-115673 and changed form and going to sleep
