Help me build a Pokemon Diamond team for the elite four?

You have rasied your team well. Keep Rapidash Roserade and Luxray. Roserade will help When The champion uses Moltic and the rock elitle lady. Luxrays crunch will do serious damage to the Pyshic types.=) I had Luxray 2. Rapidash will work good agasint the The bug Elite dude. Some others to add to your team would be. Lucario With Dragon Pusle will help with Garchomp.Starpator with Close Combat helps with Lopunny.Also A Gravler with Earthquake will do good agasint the eliltes Rapidash.Get them all about lvl 65ish. Battle wild pokemon kk .