Very.
Use it on Mespirit, Cresselia is very easy to catch.
If you have Platinum you might want to use it on Articuno, Zapdos or Moltres.
a master ball
Use your master ball.
The dusk ball has a higher catch rate in darker areas, like the cave Azelf is found in. It is also slightly cheaper than the ultra ball, which yeilds similar results. Of course, if you choose to use your Masterball, it will work without fail.
Of course, the best pokeball to catch any pokemon is a master ball, but if you used it on dialga, you could put it asleep and then get its hp red and use an ultra ball
You can use any, but the best to use is the Master Ball (if you still have it), or Ultra Balls when it is extremely weakened.
a farting ball
well the most rarest pokemon i would say is unixe azelf and mespirt they suck i know but there the rarest in the game and dialga and girantina are rare to but not as rare as mespirt, azelf and unixe.
ppl i know catching a azelf on ANY Pokemon game 4 Nintendo is hard. but the only way how to catch it is to use a freking MASTER-BALLand make it go to sleep(zzzz)Sorry to burst on your bubble but you actually CAN catch Azelf without a master ball. But yes, it is easier to catch when you put it to sleep. So heads up on very-high leveled Pokemon who can use any move that puts other Pokemon to sleep. ~.- I would prefer using your master ball on the legendary Pokemon (Uxie, Mesprit, Azelf NOT Dialga/Palkia) that you want the most. Like for instance, I wanted Mesprit the most, so I used my master ball on him. But this DOES NOT mean that you would nessicarilly use your master ball on mesprit or on your fav legendary. It's just a simple idea.what i did was put it health point low as possible then put it to sleep. i used a lot of dusk ball and ultra ball.using ur master ball is a waste. u should save it on a stronger legendary when u ran out of other pokeball
Azelf is found in the Sinnoh Region, in one of the three caves in the middle of the three lakes. (Pokemon Diamond and Pearl). You can catch azelf after you catch the Pokemon Dialga or Palkia. It depends on the type of Pokemon game you have Pearl for Palkia and Diamond for Dialga.It would be best to catch Azelf with an Ultra ball. But if you havent used your master ball yet u can catch Azelf with that. Use Kricketune's false swipe, the use luxray's thunderwave to paralyze it. It took about 10 dusk balls.
use a master ball use a master ball
No but i have heard that you can use it like a master ball on latias
I used a Master Ball to catch Palkia, but that was before I knew Uxie, Azelf, and Mesprit were legendary. It all depends on the types of the Pokemon or how long you expect the battle to last. For Water-type or Bug-type legendaries, use Net Balls. For long-lasting battles, use a Timer Ball. For cave or night battles, use a Dusk Ball. (I recommend this for the Generation IV legendary trio, Uxie, Azelf, and Mesprit.) For Water-types, use a Dive Ball. (I'm not sure where you get this.) An overall ball to use would be the Ultra Ball.