He will start at level 30.
There are sadly no special events to catch Deoxys in Sapphire. You HAVE to trade a Deoxys caught in an event from FireRed, LeafGreen, or Emerald.
NO!
When you catch Deoxys it is level 30.
It Is Illegal!!
you go to gamestop and get a mystery gift on emerald and then trade deoxys over to sapphire or in emerald go to birth island follow the triangle until deoxys lv.30 appears. Hope I hepled!
no you cant find deoxys in sapphire. but u can go to 4shared and download a game called Pokemon sharrowns.in it you can catch most of all legenderies.
breed deoxys
If you want deoxys in Pokemon sapphire, you need an action replay, or an game shark. Or trade from an emerald game that been to birth island, and has caught deoxys.
Sorry But as much as i would love to catch it, you can't catch in Pokemon sapphire :(
You need to migrate it from FireRed, LeafGreen, or Emerald. But if you have a Deoxys in Pokemon Ruby or Sapphire, then you can migrate from them to Pal Park.
you can catch kyogre,latias,rayquaza,deoxys(some say),
an event which is long gone by now, or by trade