Random but I managed to find my third shiny legendary last night, Shiny Suicune in 996 soft resets!
Hunting it wasn't too bad, my dad let me have his Entei from Soul Silver for this hunt as you need both it and Raikou in your party to make Suicune appear. Luckily It didn't take too long to get it in a dive ball, but I did trick it a Leppa Berry just in case
I honestly really like the Shiny Legendary beasts, if I had to pick a favorite, it would probably be Raikou, as I love the orange with the black stripes



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If you have any other questions, feel free to check out this thread, located in the Bell Tree HQ. People will be more willing to reply there!