Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
So I'm trying to RNG abuse a shiny just to see how this method works out. I'm using a friend's game because they want to learn about the method.
I'm following the Smogon guide down to the letter and I'm using a Hoenn-migrated Metagross and a japanese Ditto. I'm positive the the ID and SID are...