www.smogon.com/dp/moves/metronome
The following pokemons should be in the list, but aren't:
Alakazam
Ambipom
Celebi
Ludicolo
Machamp
Poliwrath
Jirachi
Mewtwo
Dusknoir
Hariyama
Medicham
Metronome is also missing in the /dp/<pokemonname>/moves page. But they're on Shoddy, so.....
Might have...