Clefa's can be caught in Mt. Coronet near the Celestic Town exit. They can only be caught at night time, I believe.
You go into the ravaged path and there u find a cleffa (i have a cleffa in platinum)
You go to "Mt. Coronet" and go up to the foggy part and just, Hope you have a Catching Advantage and a Ultra Ball.
Talk to the owner of the Pokemon mansion until he says something about a clefable.
The thing is, you can only talk to him once per day, so you have to have patience.
The Pokemon you see do not go in your pokedex.
you have to see all the Pokemon in sinnoh.
ask all of the fishermen for a battle
He is in Sandgem Town, in the Pokemon Lab after you see all the Sinnoh Region Pokemon.
Mightyena and Kecleon by level up there is so much by TM so ill just list the website http://www.serebii.net/attackdex-dp/thief.shtml
clefable and blissey can be found by a trainer on Route 210 west of the house.
he is on top of mt.everest lol
Cleffa-[Clefairy-Clefable]
bannete or clefable
You can't catch a Clefable, since you have to use the Moon Stone of Clefairy to get it, but you can do that, or Catch it with a Ruby etc. game in.
you can get a clefable by giving a moonstone, found underground in diamond and pearl, to clefairy
nidorina-nidoqueen nidorino-nidoking clefairy-clefable jigglypuff-wigglytuff skitty-delcatty
If you can't find a wild cleffa, try breeding two Clefairy/Clefable (or one of those and a Ditto).
You can't see it, evolve a clefairy to get clefable.
clefairy and clefable
the no.36 pokemon is clefable
Clefable is #36 in the national pokedex, and it is a Fairy type Pokemon.