Yes and no. You do need all three starters, and you need every legendary except for Deoxys, Celebi, and Jirachi.
You can get Totodile In Pokemon FireRed(Johto Starters).In GBC You cant get IN Pokemon Gold,Silver,Crystal.Not sure if in Ruby,Sapphire Emerald.
You must trade otherwise you cannot receive it.
Xerneas, Yveltal, and Zygarde There is also Diancie, but it is an event pokemon. You get the choice of Articuno, Zapdos, and Moltres depending on your starter.
Trade one from ruby or sapphire or emerald.
They are Torchic, Treeko, and Mudkip. Reasearch them in a pokedex for more info.
You have to complete the Hoenn pokedex to get one from Prof. Birch. That includes catching all the Pokemon in there. This is impossible, but you can get a Johto starter if you finish your Hoenn pokedex and show it to professor Birch.
Suicune is not a possible starter Pokemon in emerald you must get a suicune from Pokemon firered or leafgreen.
No you can catch one of the legendary dogs anywhere in kanto, wich one you will find depends on the weakness of your starter pokemon
You can get Totodile In Pokemon FireRed(Johto Starters).In GBC You cant get IN Pokemon Gold,Silver,Crystal.Not sure if in Ruby,Sapphire Emerald.
No, Emboar is not a Legendary Pokemon, it's just a fully evolved Starter Pokemon.
Mudkip is a starter Pokemon on Pokemon Emerald, Sapphire and Ruby. This means that it is the first Pokemon you get. You get starter Pokemon near the beginning of the game from Professor Birch. Other starter Pokemon are Torchick and Treecko.
No, he is a starter pokemon, but he is just as rare as a legendary, since there is only one.
none
try to catch your legendary. It varies on which legendary depending on what starter you chose.
You cannot get all 3 Starter Pokemon in Pokemon Emerald without trading for the other 2.
No it is a starter in the johto region.-evolved from a starter
no