What is your team for pkmn. diamond version; can you give me some pointers for me to make a better one?

my advice is to add two more pkmn to your team like garchomp (just like the other guy said) and then a good strong psychic type like maybe an alakazam or a kadabra or a bronzong also to get a lucky egg witch u have to be lucky find a wild chancey and hope its holding one