Okay, OP, I'm gonna use your thread to ask some questions.
So, Klefki is a fucking monster right now, being able to come out first and occasionally KO entire teams by himself.
People tend to be using Substitute, Swagger (for confusion and attack boost), Foul Play (Benefits from opponent's attack), and Something like Thunderwave to make your opponent fail to kill your substitute.
However, my question is, is he an opener? Would you open with Klefki? Because my favourite Pokemon is Froslass, and I like use it as my opener, with Taunt, Spikes and a Focus Sash. Now, I'd really like to play the great destroyer of worlds known as Klefki, but would he work along side my Froslass? Any ideas of how I can use Froslass to set up for Klefki?