probaby kyogre
You have to fight it until its weak then use a master ball
To get an additional master ball, you must either trade it from another Pokemon game, or use cheats to get one.
ho oh
you cant have to use action replay ds or if u have an r4 download cheats on it good luck
use a master ball
You cannot find a second master ball however you can trade Pokemon to get another Pokemon with a master ball or use an action replay
use it
Use it on Palkia.
In Pokemon Heart Gold, Ho-Oh is a level 45. So, I would use an ultra ball so you could save the master ball for someone like lugia, who is a level 70.
you can use your master ball
a master ball!!!
giratina