Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
I've seen decent results using a combination of SD Kartana and BD Azumarill. The two support each other very well defensively and can also answer eachother's checks pretty well. Try out an offensive core of Kartana and Azumarill