shapeshifting SCP

SCP-4122
Object Class:Euclid
Special Containment Procedures:
SCP-4122 is to be contained in a fully airthight humanoid containment cell at site-##. There are 4 cameras placed on all corners of the roof that record 24 hours a day and highly sensitive system of sensors for detecting any breaches of the surface that are place behind the walls, floor and roof. The containment is accessible only by a reinforced airloock. SCP-4122 is to be fed twice a day. SCP-4122 is to be given furniture and clouthing by his preferances as long as it doesnt violates any of the rules of the Foundation. Expirements with SCP-4122 must be aproved first by level 2 personal or higher.
Description:
SCP-4122 is a fully black entity capable of taking any shape and size at it's desire with the only exception being that it can't become something bigger than 10 by 10 by 10 meters. Also it's made up from unknow material that is resistant to bouth extrimely high or low temperatures. SCP-4122 is sentient and able to comunicate, eat, sleep and drink water even though scans of its body reveal no internal organs or him having the need to do these things. It states that it does them because its just wants to. Since SCP-4122 has been contained it's been cooperative and hasn't tried to breach containment with the exception of acident 4122-A and acident 4122-B. Tests also reveal that it's resistant to most memetic efects making it potentialy useful for testing some other SCPs but this for now is not allowed from the O-5 concil.
Addendum:
SCP-4122 arrived at site-## on 07/04/20## on its own will wanting to be contained before the army comes( roughly 5km away from him there were 2 tanks, 1 helicopter and a suv with mounted minigun coming at the location of site-##). Team was dispatched to meet with the grop and send them off back and later they were give amnestics. Later when questioned SCP-4122 revealed that it has escaped(by breaching the fuselage and causing explosive decompresion) from a secret space station in low orbit of Earth and it survived the reentry. It said that it landed somhere in close proximity (5 days later a small crater was found 56km from the site).
acident 4122-A : SCP-### breached containment and headed towards the testing area of SCP-4122 while on the way it killed 1 staff member and injured 2 more. When the containment team arived to contain it, SCP-### was found dead and SCP-4122 had breached containment and had enveloped it while also crushing it. On interogation it said that it did this in order to save staff members.
acident 4122-B : An earthquake of 5.2 magnitude happened near the site witch led to multiple breaches of containment. Within 3 hours all SCPs that escaped were recontained but SCP-4122 was found that it escaped containment too and it somehow maneged to terminate SCP-###, SCP-### and SCP-###. It stated that it did to protect staff members again.