A true devil (Slenderman x hazbin hotel x helluva boss)

Bio: Slenderman

Origin: Unknown.

This creature is something you don't want to come across. He is feared by those that have seen him he kills everyone that comes across him. Adult or child. Those that wish to gain knowledge about this creature with be hunted and killed. He attempts to gain trust of children before killing them, as for adults he stalks them to insanity. He at points removes all existence of the unfortunate victim by burning them and their work or school killing others in the process.

Selective invisibility: He can appear to only a few people if he so wishes while remaining hidden from others.

Body change: He can change his height and body shape granting him the power to hide in plain sight.

Tentacles: He has been seen with the power to has tentacles from his hands or from his body.

Slender walking: He can go anywhere he wants instantly.

Impersonations: You hear that voice of your best friend? Ignore it, it's not who you think. He can sound like different people to attract victims.

Mind Control: You are at the control of him fear not for he knows what to do. Do not fight it for you can't.

Pyrokinesis: Fire follows his will. Burning his victims to remove them from existence.

Mutilation: Trying to run proves no use for he rips you apart alive.

Virokinesis: Known as "The Sickness" causes victims to become ill bleeding from the mouth, nose, or even eyes. He causes you to black out and manifest a fever.

Telepathy: Even from far away he remains next to you speaking in your mind acting like the devil on your shoulder.

Prolonging death: He will keep you alive just do suffer. 

Slender Sense: Lacking a face he knows where you are. Escape is impossible for no one.