It evolves from a Wailmer near level 40.
You do not need a Wailord to catch a Registeel in Pokemon Emerald. You may need a Wailord or any other water-type Pokemon to surf to the place where you catch Registeel, but other than that, you don't need a Wailord.
No, but a 45 wailmer is basically a wailord.
In emerald, there is a slim chance you'll catch one in Route 129, but the easier way is to catch a Wailmer and evlove it.
You Can't
I don't think so, but you can catch wailmer near Pacifidlog.
no you do not just the Pokemon relicanth and wailord.
go to route 129 and surf around, there is a 1% chance that one will apear
The only way to obtain a Wailord is to trade it from Ruby, Sapphire, and Emerald.
Just use Super Rod at any water (you can use your pokedex), catch at lv 30-40 Wailmer. Train the Wailmer, at lv40 it'll evolve into Wailord. I hope it's helpful
You can catch Wailord while surfing through Route 129 however it's a rare Pokemon additionally you can find Wailmer in locations such as Mossdeep City, Ever Grande City, Dewford Town and Lilycove City and then you can evolve it at Level 40 which will cause it to evolve into Wailord.
You cannot catch Wailord. You can, however, catch Wailmer, which evolve into Wailord starting at level 40.
I don't think so, but you can catch a wailmer and raise it to evolve into a wailord.