Relic Castle

I modified this code from the code about Shaymin. What it's supposed to do is have the Pokemon go into its alternate form at night, but I'm getting a syntax error and don't understand why. Do I need to define that it needs to be in form 0 during the day too? I have next nil commented out since it was where the syntax error was the first time I tried it, but now it's saying the syntax error is in the line below it.

Code: 
# Shroudeow #

MultipleForms.register(:SHROUDEOW,{
"type1"=>proc{|pokemon|
   next if pokemon.form==0     # Day
   next getID(PBTypes,:GHOST) # Night
},
"ability"=>proc{|pokemon|
   next if pokemon.form==0              # Day
   next getID(PBAbilities,:CURSEDBODY) # Night
},
"getForm"=>proc{|pokemon|
   next 1 if PBDayNight.isNight?(pbGetTimeNow) ||
#   next nil
},
"onSetForm"=>proc{|pokemon,form|
   pbSeenForm(pokemon)
}
})
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