It doesn't matter what Pokeball you use. If you have the Master Ball left over, you could use that to catch Latias. However, Ultra Balls will work the best if you do not have the Master Ball.
I'm guessing you don't have a Master Ball since your asking this question, so the best ball to use would be an Ultra Ball. Sometimes it takes more then once to catch a Pokemon, so you just have to be patient and try not to freak out like me when Latias runs away after chasing it for hours. :D
after that, someone at the battle frontier will tell you about latias and latios. then, latias will start roaming kanto.
In the pewter city museum. to get his attantion you must bring walking latias ( heartgold) or latios ( soulsilver ) with a soul dew from a mystery gift. then he will take you to saffron city. he will talk to you for a while. then he will go back to pewter then show you latios ( heartgold ) or latias ( soulsilver ) outside of the museum. then after you defeat or catch one of eon Pokemon that's the last of him.
a Master ball or alto of ultra balls
Just be paitent and catch it with a pokeball!
I would recommend that you use on latios or latias w/e which they are because raquaza and kyogre are fairly easy to catch You don't have to use your Master ball on anything. You can use it on Kyogre, but that's the easiest legendary to catch, so I don't recomend it. You could save it for later on, like for Rayquaza. That's MUCH harder to catch! It's at level 70 when you encounter it, but you could still catch it with a normal Pokeball (I did). And then, you could catch Latias with it, which would be the best in my opinion, because unless you have a Pokemon like Wobbufett, with the ability Shadow Tag that doesn't let the opponent escape from battle, then it would be pretty hard to catch. So I say catch Latias with your Master ball.
with a pokeball ;)
with a pokeball
In pokemon Heartgold
you can't, but you can catch latios in ss and latias in hg hg(Heartgold) ss(Soulsilver)
With some kind of pokeball. Maybe you should have asked how to find/get to ho-oh instead and not how to catch it.
it roams kanto after you get it on the marking map
you need your national poke decks to do this look on the map on your pokegear it wil show where latias is
master ball, paralyze and block, false swipe and random balls
Which pokeball should you use to catch victini. Well i used the normal pokeball but in my opinion i think that you should use the ultra pokeball
Donphan, Growlithe, Gligar, Latias, Kyogre, etc
You can get Latias? Oh right! Use a masterball for a guarantee catch, if you are a button masher use any pokeball.
You need to find an apricot and take it to the guy who can make pokeballs and you will get the apricot pokeball which will help you to catch celebi