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The maker of the Pokemon admitted to doing so already. But if you are really interested, most of the Pokemon with that OT that passed Legal.exe have wrong Ability type. Meaning while the Pokemon may have had a PID that would have resulted in Ability 0, the Pokemon had an Ability 1 instead. It's just plain bad hacking :P
No, all of them are hacked. The maker of the Pokemon is apparently altering the PID of the Pokemon to make them seem legit. Don't rely on Legal.exe (I believe that's what you're doing).
well havent bred it yet, buts its gonna be a breloom. i will probably have it by tomorrow, i been playing on shoddy with it, its pretty good so i wanted to have one, its a defensive SubSeed kind