Of course, Candyman is influenced by A Nightmare On Elm Street, and Freddy too only has power if you believe in him. Sure, there's subtext and stuff to that, but literally in the story I'd say both characters exist. Having the impossible horrors actually exist is well, a big part of supernatural horror.
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One Piece: Pirates with style!
-= Metal Gear Solid: Tactical Espionage Action =-