if you do not have a masterball then use an ultra ball
master ball. but save it if you want it to use it on entei or raioku which run in the wild
If you're talking about Raikou, Entei, and Suicune,I used an ultra ball on Raikou and a dusk ball on Entei and Suicune.If you're talking about Articuno, Moltres, and Zapdos, I lowered down their hp and then used a dusk ball.
Anything. You keep trying until you catch it.
Entei is a powerful Fire-type legendary; however, it mainly flees in Pokemon FireRed, LeafGreen, Silver, Gold, Crystal, Heartgold, and SoulSilver. It wouldn't hit your Gastly, unless Mean Look is used. You can catch Entei with any Pokemon, because it just requires at least a Poke Ball to attempt to catch it. Be careful, though, if Entei doesn't run or get caught, it can easily defeat Gastly.
Its easy just hurt it very much but not kilt paralyze the entei if you can or use hypnosis but you don't must to do that just make it easier. then use the ultra ball. I not sure the entei will be catch directly but soon.
you ensure that you catch the entei, but it will be harder to catch the ho-oh using ultra or other balls
With a Poke Ball
to catch suicune,mewtwo,raikou and entei
beat him to red then throw an ultra ball
You can use any type of Poke Ball that you want to catch Spheal in Pokemon SoulSilver.
catch a pikachu in viridian forest.
Neither is easier to catch than the other. They both have a catch rate of 3.