SCP Shadow of 3D

this is SCP-shadow of 3D the SCP resembles a crooked man's shadow and is a humanoid in shape or at least determined to be humanoid by the SCP foundation and is very dangerous because it has a variety of shadow tools this is only known as SCP-XXX-1 although they appear tp be in 2D don't be fooled it can make a weapon of the 2D universe in 3D but there is catch they are 10000 times stronger then normal weapons since it is a shadow it can phase through walls like SCP-106 and just like most SCPs this SCP is clearly unable to be killed the foundation has tried multiple attempts to kill it and still are and like some SCPs like SCP-049 he can also talk and have also had tests to talk to it but all these test subjects were D-class personnel just to prevent any risks and none of the test subjects survived except 1 and he was the foundations MFTs said that if he survived he would be terminated and he wasn't terminated but was put on torcher with 682 until he died the SCP can increase and decrease its size just like 682 and eats and kills for fun humans before eating the human he opens up one of 5 mouths it has on its body and head although it is unknown which one is the real deal and once it is put inside the body it will not just die in 1 second because that's not fun instead it reveals its pocket dimension inside its body anything in this body will have it decay except for the inside of the to part hence the victim's skull will not decay that is not because it does not want to leave no trace but to make the skull and some sort of unknown black matter into a entity which are called SCP-XXX-2 and are hostile towards any living entity human or animal it doesn't care and is extremely hard to kill and only destroying the skull will allow it to die and all the mouths of the SCP have teeth for some reason. one test was with doctor well a foundation researcher was put in with the SCP this was the first test before the foundation knew it could preform any hostility doctor well said a few words that made it enter its rage state like lol u trash shadow dumb dumb it killed doctor well well that's it.