Easiest way-Have a friend give you the legendary dog your trying to catch then look at your pokedex and track down the dog then when you go into the grass it will show up now use the masterball and your done.
Medium way-Look around Route 1 the dogs love to come there when you find it use the masterball.
Hard way-Look around Route 1 until you find it then weaken it to red hp and it will run away find it again then paralyze it will run away again now find it again and when you do try using an ultra ball it will probably fail and it will run away to prevent this send out a wobuffet when you are fighting the dog then try to catch it.
Obtaining the Aurora Ticked through events
---- the mysterious rumble releases the legendary dog on 7 island.
You can't get charmander Without migrating one from your leafgreen/firered GBA game.
yes you can ive done it personally
Entei, Raikou and Suicine are often referred to as the Legendary Beasts or Legendary Dog pokemon. They aren't in Diamond, so you'll have to trade or migrate them. You can do this from the following games: FireRed/LeafGreen, HeartGold/SoulSilver and OmegaRuby/AlphaSapphire.
there are 5 legendary Pokemon in leafgreen version
You cannot get Legendary Pokémon Eggs in Pokémon LeafGreen due to Legendary Pokémon being incapable of breeding.
Unlike the vast majority of pokémon, legendary pokémon can generally only be found through special means (expecially Monthly Events).
he can be found all over kanto after you beat the elite 4.the only way you can get it is as if you picked squirtle
Once you have beaten the Elite Four, the Legendary dog (they are different - according to your starter Pokemon) can be found randomly throughout the Kanto region (Kanto region only, not the islands). It is rare and random so it takes a lot of effort.
A catfish. Ba dum tish.
Well entei the legendary dog Pokemon will appear in the wild after beating the elite 4 and getting the national dex.