Azelf is in lake Valor near Pastoria city
at the lakes
in the scert room
No
Use your master ball.
The rare Pokemon which you can get before the Elite Four in Pokemon Platinum are Giratina, Mesprit, Uxie, and Azelf.
You can't catch Azelf in Pokemon Heart Gold. Sorry! But you can catch it in Diamond, Pearl or Platinum. Hope this helps!
giratina,mespirit,uxie,azelf,darkai,shaymin,cressellia
No, they won´t
you have to go to lake verity cavern and catch it.
They will run away, and you have to find them in the wild and capture them.
in platinum the different sprites are UXIE,MESPRIT and AZELF
On Pokemon platinum, number 148 of the sinnoh pokedex is azelf - the lake guardian!