for food-like items, go to the trailer on the route west of Nimbasa city. for relic items, go to the riches house in undella town. for rock/gem-like items, go to the pokemon center in Icirrus City.
in anville town ( to get there take the train in anville town from battle subway) on a weekend
Yes, kinda.
in the maniacs cAVE
Anville town is for maniacs that are after things like big / small mushrooms, while Undella town (in the villa), is the collector for ancient items.
the fossil maniacs brother
Anville town at weekends is a great place for trading items, and The Riches house in Undella town trades items from the Abysall ruins for money.
at the fossil maniacs house this girl will give it to you
they r in the ruin maniacs cave
Dig is not a HM in Pokemon Platinum but a TM, it can be found in the ruin maniacs cave.
fallourbaur town in route 114 there is a house
Ditto - 50% of encounter Whismur - 34% of encounter Loudred - 16% of encounter
The more unknowns you catch, the bigger it gets