if you mean mewtwo you can get it if you beat the elite four and get the ruby and sapphire and give them to celio on one island. you have to go through the cerulean cave above cerrulean city. it will be level 70
That's impossible.
beat the game, and go to misty's town. and go to the cave
mewtwo is in cerulean cave
you can still go to cerulean cave to catch it like in firered and leafgreen
no
No. It's a cheat. Mewto, yes.
im pretty sure after that you'll have to complete the national pokedex
You cannot see it in the wild in Pokemon Diamond; you have to transfer it from FireRed/LeafGreen.
Yes,its level is 70.
mewto legendary birds- zapdos-thunder moltres-fire articuno-ice
you cant do anything because you did everything
articuno, moltres, zaptos, mew, mewto, suicine, entie, raiku