I then started hunting Rayquaza immediately after, dual hunting on both of my DSes. Despite this, he didn't appear too quickly. But he did appear much quicker that Kyogre. After a few days, I was sitting in bed and I saw his black form on my right side 3DS! I began shaking, and rightly so. This battle was the most stressful shiny battle I have ever had. All of my other shiny legendaries: Kyogre, Groudon, Mewtwo, Latias, Latios ... they were all caught in balls other than MasterBalls. I don't like MasterBalls too much. So, I prepared myself for a battle and a half. It seriously lasted over thirty minutes. My hands were sweaty. I hated his moveset. It's just ridiculous. It's set up to be awful to capture. Ancient Power giving it stat boosts, Rest keeping it healthy, Air Slash flinching and STABing, and Outrage confusing it. The most frustrating thing was that I had 7 Dusk Balls shake three times, but each and every time he broke out. In the end he backed me into a corner. He was in the red, confused, and it was possible that if he didn't use Rest, he might KO himself from confusion. He was asleep at the time, so I was scared he'd wake up and KO himself instead of shaking off his confusion. So I reluctantly used a MasterBall. The important thing is that I caught him! He's so beautiful, but all three of them are perfect in my opinion!
I had amazing luck with those three, though!