There's no tips on cards to use, all depends on playstyle.
Stongest clans in Standard:
•Rescue (If played correctly)
•Pussycat (but very slow and annoying)
•Skeelz (Not as strong now though)
All depends on playstyle. Best Leaders are:
•Hugo (For All Stars, Uppers, Sakrohm)
•Morphun (For Piranas and Vortex)
•Eyrik (For Sakrohm, Uppers, Junkz)
Hugo is not as good on Attack Manip. Clans as Eyrik and Eyrik is not as good on Power clans like Hugo. You'll understand if you ever play in-depth DM.