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When does the sailor's son have the nightmare in Pokemon Diamond?
He is the sailor in Canavale City that takes you to Iron Island and Fullmoon Island and back. You can only get to Fullmoon Island after you get the National Pokedex,talk to his son in his house, then...
To get a Gliscor in Diamond/Pearl: 1st put Emerald in the GBA Slot and catch a Gligar on Route 206, 207, 214, 215, 227, or Stark Mt.; 2nd get a Razor Fang on the Southwest corner of Battle Park or...