Lucas or Dawn's sister ( depending on if you play as the male or female protagonist ) will tell you where Pokemon outbreaks are taking place and the Pokemon that you can catch there. I believe there is a show on the tv that will tell you that as well.
The correct spelling is Poke Radar instead of PokeRadar. Poke Radar is a key item in the Pokemon game. Its function is to point out where you can find Pokemon in grass, including some rare Pokemon that are only available when you use the Poke Radar.
Ditto does not come from a fosil. After getting to PokeRadar, use it in a area of grass. shaking areas of grass means rare pokemon.
Go to rout 224 and use the pokeradar that's how i got my dusclops.
On Route 206 use your PokeRadar an you'll eventually catch it. It's by the cycling road.
use pokeradar in 9x9 grass to catch rare pokemon or talk to dawns sister and she will tell you where to see the rare pokemon (you need the national dex) and you can also find some rare pokemon in the trophy garden (no need pokeradar) just talk to Backlot and he will tell you what pokemon are in the garden (the pokemons there are not so very rare exept castform and meowth)
Go to Fuego Ironworks and use the pokeradar. Very rare
If you go to the TV in Dawn/Lucas' house or ask Dawn/Lucas' little sister she will tell you a rare Pokemon of the day. Or you can use your Pokeradar.
in stark mountain (not inside) but there are rare (u don't have to use pokeradar)
yo can catch it where you find bagon and stuff but use a pokeradar its rlly rare
Rare, you have to use the Pokeradar on Route 230 to find it.
Honestly, I am going to say you can't find a Ditto in Sinnoh naturally. You have to use PokeRadar or migrate it. If you use PokeRadar, you go to Route 218, east of Canalave. It's easiest just to use your pokeradar. It isn't too rare
A pokeradar is a device used in Pokemon to find legendary Pokemon. In the grass there are the Pokemon from the normal pokedex. but, if you were to use the pokeradar you will find legendaries. For example lets just say you are going through route 209 and you see wild grass while standing in it use the pokeradar and you could find a matang. that was an example. you do not find matang in route 209
it depends on the place you use it on
You must use the PokeRadar on Route 218. They are kinda rare though.
Use the Pokeradar on Route 218, near Canalave. He is not common but not rare, either.
sometimes you can use pokeradar. if you us pokeradar and get 599 smurgles the 600th will be a wyruant
To use pokeradar go to key items then press use. After you do that there should be shaky spots in the grass,(did i mention you have to be in grass) choose the shakier and shinier ones.