I don't think Klinklang should even be a choice, to be honest. He's pretty inferior to Magnezone as his defensive stats are worse, his moves are spread out between physical and special, his Sp.Atk is considerably lower, and not to mention that he doesn't even have STAB from his electric typing. Though yeah, you'll probably need a poison or steel mon in case to counter xyr single types. I can see that xe will probably use Florges and Klefki, and may have an Azurill, a Togekiss, a M. Gardevoir, or a M. Mawile, so most definitely bring in a Nido with Ground moves for the Steel/Fairy mons and switch out for Magnezone if xe brings out Azurill, Togekiss, or Gardevoir. So yeah, I'll say a Nidoking/Nidoqueen along with a Magnezone should be enough from xem as at the moment there are very few type combinations for Fairy-mons, constricting Adrienn's potential line-up.