>>45158454You would need proof that you received the event legitimately, usually in the form of pics or videos of the event being claimed. If it's in-person like shiny Diancie you'd also need attendance proof, which usually consists of a picture or video showing off the location itself at the time of the event.
Basically measures meant to keep people like you from scamming because they know full well save editors exist. If you wanna trick idiots out of money, best to stick to ebay. Also
>randomize trainer ID/SID/NameThese are all static on most event Pokemon.