Frankly, I can't think of any reason to use KlingKlang in a meta with Registeel. Trick Room or no-- and I can't think of any reason why you would need its resistances over the bulk of Deoxys, Cress, or Uxie. It also has no way of moving to a teammate either-- no explosion. Uxie or Victini on the other hand, could use a fast U-Turn to get a teammate in without exposing it to an attack, or Uxie could use momento. Klingklang just seems bad.
I'd have to see some really good arguments for Bronzor too. It just looks extremely unimpressive. I'd rather use Claydol really
I reject both unless provided with some REALLY good argument.
Big NO to Riolu too.
"Hmmm... a name for this plan..."