Slentacle and Slenstalker (???)

Name: Slentacle (Slenderman + Tentacle)
???: The Black-Eyed Pokemon 
Type:  
Ability: Abduction (The Pokemon steals the soul of its opponents for five turns, and has full access to its move set)
Height: 3'06"
Weight: 52.1lbs
Gender Ratio: 4  :4

Evolution:
     (Levelling up in the '???' Forest)
Slentacle >>> Slenstalker 

Pokedex Entry: Often seen photobombing normal family photographsm, it stares at the camera with its empty black eyes until the camera lense cracks 

Additional:
- They are based on the Black Eyed Children 
- They are also based on Gaster from Undertale 

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Name: Slenstalker (Slenderman + Stalker) 
???: The Abducting Pokemon 
Type:  
Ability: Abduction (The Pokemon steals the soul of its opponents for five turns, and has full access to its move set)
Height: 9'02"
Weight: 133.2lbs
Gender Ratio: 4  :4

Evolution:

Pokedex Entry: It hides in the forest, seeking out lost children that chose to play in the forest without their parents permission. Some say that the Pokemon sends the unforunate children, others say they feast on the childrens souls before turning them into Phantumps 

Additional:
- They are based on Slenderman 
- It has been spotted in many different regions, and seen in many videos and photographs of small children