Use the masterball.
Use a Master ball on Suicune but there is an easier way get Suicune. Catch a Pokemon who has the ability of spell tag.
there isn't a wild suicune to catch in white or black
Weaken suicune to 1 hp preferably using false swipe and use several ultra balls to catch it. It's even easier to catch it with a status problem such as sleep and paralysis it also helps to use mean look, though suicune is not known for running away. If you inflict suicune with burn or poison it is difficult to catch it because you have a limited amount of time. A WARNING: make sure you have plenty of ultra balls because it may take several tries to catch suicune.
Use a master ball.
You can get any starter to catch Suicune.
yes
suicune is a rubbish Pokemon, if ya want it its not in emerald, its in Pokemon silver gold ruby and sapphire, ( they got rid of entei raikou and suicune to make way for rayquaza )
Suicune is a hard Pokemon to catch Suicune will move around diffrent places. You normally catch Sucune at level 40 use your map to try and find Suicune on your pokegear. It is hard but you will get there
It actually doesn't matter what level your party is to catch suicune the best way to catch is to use the masterball but if you don't have it have a Marowak or Scyther at level 100 use False Swipe to get Suicune's HP to 1 it will run find it again and use sleep powder or hypnosis on it start throwing ultra balls to catch it.
You can catch Suicune at many points in the game. It depends on when you caught it. It is impossible to say what you must do next.
you cant...sorry
yes