it is a building near the complex of hotel grand lake. it is inside the vicinity of valor lakefront.
The Grand Lake Hotel aka the Seven Stars Restaurant is located within Route 213 which is the route east of Pastoria City.
You would need to use an Action Replay or transfer it from Pokemon Emerald, FireRed, or LeafGreen, for it is impossible to catch Deoxys in any location in Pokemon Diamond, Pearl, and Platinum.
Yes if you want it on pearl
In Pokemon Diamond/Pearl, you find a old man at route 212 with a Leafeon.
Of course you can. I played my Pokemon Diamond with my cousin that has Pearl.
Of course! Try going to www.serebii.net, click on the Diamond/Pearl under the Games on the left side, and find Swarming on the right side of the nest screen. there are 29 different kinds of swarming Pokemon in Pokemon pearl and Pokemon diamond
In Hearthrome.
The site listed below has a chart for the Pokemon Finneon Diamond and Pearl edition.
Very north of sunyshore city.
Sunyshore City
sunnyshore city
To the right of Mt. coronet
This location is only in the 4th generation Pokemon games like diamond and pearl.
trade diamond from Pokemon diamond onto Pokemon pearl
You trade Magmar from Pokemon pearl,diamond,or platinum to ether Pokemon pearl,diamond,or platinum.
THE POKEMON THAT ARE NOT FOUND IN DIAMOND AND PEARL ARE:MANAPHY PHIONE
diamond
You can get Palkia in Pearl, otherwise you have to transfer Palkia from Pokemon Pearl to Pokemon Diamond.