You have to use mean look(golbat-crobat can learn it) so it doesn't run away and you weaken it until its health is red, make it fall asleep, and toss an ultra ball.
No but i have heard that you can use it like a master ball on latias
a master ball!!!
NONE!! Except for the master ball. i have heard that luxury ball can also be used like a master ball on latias comment but i have wobbufet as my first pokemon,then i found a latias,then i caught it with two ultra ball...
Get someone that knows a move like mean look that will prevent the opponent from escaping.
save it for Latias, since Latias will always run away while Rayquaza stays in battle.
After defeating him in the galactic HQ after the seventh gym, Cyrus will give you a master ball. Do not use your master ball on dialga! Instead, use it on Cresselia or another harder Pokemon to catch.
Use a trapinch, cause it to sleep use bind or constrict or try your luck and throw a ball at it.
The trick is to save your master ball.
You can use the Master Ball on any Pokemon you want to use it on, but I would use the Master Ball on roaming Pokemon, since they are difficult to keep them in the battle without fleeing. The roaming Pokemon includes: Articuno, Zapdos, Moltres, Raikou, Entei, Latias, Latios, Mesprit, and Cresselia.
LATIAS no doubt that's what they ment it to be for i think.
No. a Master Ball is yes, but is has a lower rate catch than ultra ball so ultra ball is or if a Pokemon who's battling Latias and lasts long, timer ball is good at that point
get it asleep or paralyse it. then use a ultra ball