The only way I'm familiar with besides the Action Replay is to catch it in Leafgreen or FireRed and then migrate it.
Dialga, Mespirit, Azelf, Uxie, Articuno, Moltres, Zapdos, and Heatran. Those are the ones I know.
Behind Dialga when u beat him (only in Pokemon Dimand)
You can't.
Onux are rare ?
There is no Mewthree
sure can
You can't get Articuno in Pokemon Ranger.
articuno is not in pokemon world 7.6
yes
www.serebii.net
No trainers will have articuno.
No Pokemons evolve into Articuno since its a legendary pokemon. NO ONE!!!!!!!!!!!!!!!!!! ARTICUNO IS A LEGENDARY POKEMON DUMMBUT