First u have to make it really weak Like u know the Hp box. If it's a legendary Pokemon den make it really weak like make the hp box's colour red by attacking it!!Den Keep throwing ultra ball at it until its caught!But make sure that u save the game before u start trying to catch it! If the legendary Pokemon is in a cave or at night use dusk ball its more better!If its an ordinary just make it weak den throw great or Pokemon ball at it!!If u think its hard to catch!Den at the beginning of the battle before u attack it!! Throw a quick ball at it!!
when you find that Pokemon if you have a master ball with you use a pokeball and you will capture it
you buy 99 normal poke ballos and just keep trying to cath him
try using dusk balls
using net ball, is the best idea if u dont have masterball
you have to beat the seventh gym leader then go to the spear pillar
If you have the National dex and you still have a masterball your in luck. First you have to catch a Ditto it is this purple blob thing that is on route 218 you get by using the Poke` radar. Then you breed it with ANY Pokemon that is holding a masterball. It will say the Pokemon don't like each other but they will still have eggs. The Pokemon that comes out of the egg will be holding a masterball. You can do this as many times as you want.
I suggest using the masterball.
Other than the masterball try using a lot of ultra balls.
They say "Use Gastly/Haunter who has an attack 'mean look'" but then i tried it when Entei appeared it just fled. So how can you catch the three dogs without using masterball sorry but i already used my only one masterball for Lugia and it's worth it. And i don't feel pleasure if i play unfair for short (using cheats) where you able to do anything. Help me?
You can't. Unless your using Pokemon emerald. don't use the masterball on rayquaza. when you beat the Pokemon league clone a Pokemon holding the masterball. Wow i never even thought of that! thanks!
Use you masterball on suicune because its impossible to catch it without a masterball it would just flee i cuaght mewtwo with a great ball but make sure you have lots of them.
Use the Master Ball if you need to catch a Pokemon without fail. I'd suggest using it on a legendary, though - don't waste it on a common Pokemon.