you use a master ball or down to its last life use a ultra ball.
A master ball can catch any wild pokemon.
I think you have to transfur from ruby version or something, I havent done it yet.
After you beat the game go to the saffiari zone entrance then turn around and use surf then waterfall up to a cave
in the town of the last gym leader, where there is the fight between Keoger and Grodon but, i am thinking the room is empty because u cant catch either in emerald.
not at all.
AT THE UNDER WATER CAVE A.K.A.TEAM MAGMAS HIDEOUT
to get grodon heres the cheat code 18405fsdg4dvtcdfdf4d323y6
The only way to get one would be to trade it from Ruby or Emerald.
we don't get groudon in Pokemon sapphire. we get it in only ruby and emerald
You have to trade across from older versions or from someone willing to trade
you cant but you cant but if u trade it from heart gold to platinum then you have a groudon
to find the jade orb you need grodon and kyouger so you need to trade from soulsliver to get grondon and catch kyouger in heart gold and then you need to go to profeser oak in pallet townand he will give you the jade orb