Pokémon Sapphire Tips

Ok, i only got one of the regi's so heres how u get a regirock. Get a relicanth and wailord. Then go to a black deep trench.(its a thing were u use dive.) Then put relicanth at the tip top and wailord at the bottem. Then an earthqauke will happen. Then go to the desert and go all the way back. There will be a little dot. But i dont Know that this is regirock ice or steel. 'SIX EYES BRING THE KING'.i dont know bot i got my regirock lv 40!