How an entity returns after multiple events where it should have perished.
"And yet, even after all of our attempts to get rid of it, the "always come back" Effect kept it alive."
When an entity is so evil, that it escapes the power of death itself.
Person 1: How are you alive after being stabbed 27 times?
Person 2: The Afton Effect.
The act of being unable to die and coming back to life, even after you get sent to hell.
Person 1: So... the question is... how do you always come back?
Afton 2: The Springtrap Effect.