Pokemon Diamond Pearl and Platinum

In Pokemon Platinum you have a Groudon at level 85 How do you reteach it Fissure?

Answer

Wiki User
06/09/2009

You have to get a Heart Scale from the Underground and then go to the house in Pastoria city near the lake and the guy is a move relearner so you go to the guy give him the heart scale then teach Groudon Fissure and walk off happy.