My friend told me that there is some risky if i using the pokemon that i catch before the releasing day, cuz nintendo might find out these pokemon. He not sure with that but i got some nervous :((.
The other reason i want to used the old save file because i got a shiny Decidueye for the first...
I got a cart for now and wanna use the save file from leaking game. Will it be ok to go online if i still using the pokemon that i catch before the release day in online battle?