You can catch any pokemon with any ball, you just have to be lucky. I recently caught a Zapdos with a regular Pokeball.
Fastballs are a good ball to use at the start so they're probably your best chance at catching the legendary dogs without a pokemon with Mean Look/Arena Trap/etc.
suicune
Moltres, Zapdos, Articuno, Mewtwo, Lugia and Ho-oh (by event), Raikou/Suicune/Entei, Deoxys (by event).
There is actually nothing you do with Entei, Raikou, and Suicune (Being a legendary dog-catcher myself,). Just the pleasure (Not really) of having the three.
You don't, the three 'crown' Legendary Beasts are obtained via a wi-fi event for SoulSilver/HeartGold.
You can catch all the unown, after solving the puzzle in a small cavern on island 7, you can work on your pokedex, fight in the trainer tower (also on island 7) um other than that, not too sure what else (assuming you've caught the legendary birds, mewtwo, and the legendary dog of your game)
A regular pokeball I'm not playing I caught entie with it jk the best one is a master ball but I did catch entie with a poke ball
suicune
well it depends and you need action replay cuz AR can grt anything you want and more
yes you can also catch them in soul silver.
entai- legendary dog Pokemon
no, you don't have to use your master ball on it. you could use it for any legendary Pokemon like mewtwo, or... you know what i mean!
You can't. The legendary dogs didn't exist at the time yellow was released. Sorry.
There are no legendary "dog" pokemon, there are BIRDS-articuno, zapdos, and moltres, and yes you can catch all three. Just get each one very very low in hit points and then repeatedly use ultra balls on them, YOU DO NOT NEED THE MASTER BALL FOR THIS. Moltres is on Mt Ember, Articuno is in the Seafoam Islands, and Zapdos is at the power plant. Happy hunting.
you have to beat the elite four again then you can look for the legendary dog things
In Ruby, Sapphire, or Emerald, the only way to get the legendary dogs is to trade them from a previous game. In Fire Red, and Leaf Green, you can only obtain one dog. The other two you have to trade over. Which ever dog you can get depends on your starter. If you started with Bulbasaur you can catch Entei. If you started with Charmander you can catch Suicune. If you started with Squirtle you can catch Raikou. The dog is roaming around Kanto.
You teach your dog to "give" or "drop." Or, you can just grab the ball out of the dogs mouth.
Raikou, Entei, and Suicune are the legendary dogs. Some consider Arcanine a legendary dog, but he is not part of the trio. the reason for this is that in an early episode, Arcanine was in the middle of a slate surrounded by Moltres, Articuno, and Zapdos. After the episode, it was decided that Arcanine was NOT a legendary dog.