You must have the Aurora Ticket to go to the island which Deoxys is on.
(This ticket can only be obtained by cheat devices and Nintendo Events.)
When you get to the island, you will have to solve a puzzle.
After that you will face Deoxys.
Hacking/Cheating or legit pokemon event that will give you the ticket to go to birth island
I don't think Deoxes is in Soul Silver.
in the moon
go to game stop say can i have deoxes theyll give you one
you cant
Deoxes would win because they showed on pokemon deoxys beated raquaza
Depends on which game
Trade from another game
u have o get it from ranger
You must get this stone in emerald and transfer it with a Pokemon to diamond or pearl. You go to veilstone city and walk up to a meteorite and press A. you first Pokemon has to be holding the deoxes stone.
no. deoxys is the 386th pokemon. in silver there are only 251.
Deoxes