You can't catch Deoxys. You need to trade for it because it is only found in the Hoenh Region
Poketransfer or Dream World
Yes it is!
You need to shift it from another generation. Since it is not an in game pokemon.
You get Tornadus from the Dream Radar app on the 3DS, or transfer it over from another game.
You can only transfer it as it does not appear in the game normally.
Unfortunetly you can''t get deoxes in pokemon white or black unless you transport it from another game,or use action replay.
Deoxys is an event pokemon and cannot be found in the wild in Pokemon Black or White, unless obtained from a previous generation.
You get Deoxys through event or Poke Transfer.
Deoxys...
Deoxys Can't Breed!!
You cannot catch a Deoxys in Pokémon White because it is not available in Pokémon White, you can only get Deoxys via official Nintendo event distributions as well as via trading.
Deoxys is not a wild Pokemon in SoulSilver. Deoxys has to be traded into the game in order for you to get it. Deoxys can also be received by event, and one recently took place in Japan for Deoxys.