You can get it from Dawn's/Lucas' father at the building between Eterna City and cycling road.
In diamond and pearl it is 35. an it is an EXP SHARE not and esp shard.
I have 20 exp shares DO U HAVE ACTION REPLAY I CAN GIVE U ONE
No, Only Exp.
Have a pokedex of 40 when you go to the biking place you'll see dawn's dad and talk to him and he'll give it to you
The exp share will give only the other Pokemon exp not the 100 because it is impossible to gain exp on a 100.
An exp share allows you to share exp with another Pokémon. You can get it in Pokémon Diamond Pearl and Platinum near Eterna City.
In diamond and pearl it is 35. an it is an EXP SHARE not and esp shard.
From a scientist.
Well on pokemon diamond and pearl after you have finished cycling on cycle road either dawn/lucas's father will give you an exp share in a place after cycle road.
Once you get 35 Pokemon in your PokeDex, Prof. Rowan's aid will give you the Exp. Share in Eterna City's gatehouse.
Professor Rowan's assistant in Eterna City just before the cycling road. Enjoy your Exp. Share! :)
After getting your bike,go through the cycling road and after that,if you've seen 35 pokemons,a guy will give you exp share.
professor oak gives it to you
you could switch Pokemon in battle then all Pokemon that battled get exp or you could get the exp share and give it to one of your Pokemon
use the exp share
In Pokemon Diamond, Professor Rowan's assistant will give the play an Exp Share item on Route 206. One may also be won in the Pokemon Lottery on Jubilife TV.
4 all i know each Pokemon trainer games have only one Exp. Share in the whole game