I don't think there's a meta right now, but I think the top clans considering not-so-expensive cards are Montana and Rescue. Winning low pill battles are a huge help in Tourney, but not the only option. If you have a good amount of clintz, I suggest Piranas or Nightmare, but tbh, play what you want. It all depends on your deck-building skills and the quality of your cards I've reached 4th place on T1 with Gheist, Piranas, Skeelz and Bangerz but only because I have strong cards to help me. If you want the deck list feel free to ask here, I don't mind sharing it.
I usually play nightmare cards and Piranhas , but I think you can win with any clan . In the past I've gotten high ranking in tourney just by playing a full pussy cat deck and this was before their heavy hitters came along . I agree with Miko and Jerroymy it's just how you play them and your deck building skills . I think the key is finding out what your opponent is thinking ,and figuring out how to out smart them or take them out .