500
Sometimes, on a dark night, your shadow thrown by a streetlight will suddenly and startlingly overtake you. It is actually a ______ running past you, pretending to be your shadow. To steal the life of its target, it slips into the prey’s shadow and silently waits for an opportunity. On the night of the full moon, if shadows move on their own and laugh, it must be ______’s doing.
What is Gengar?