This has the 3 main Event resources under the Regarding Event Pokemon section. You're free to check all 3 databases for the Wi-Fi gift Porygon. I only check Serebii. Let me know if you find anything.
Well may I see the Link to this site? Sorry if I'm hounding you:(, but I don't like when someone says that my stuff is a hack. If it is, then I'll accept it and quit trading it, because I honestly didn't know. And it said it was a wifi gift.
I wasn't too sure of the Arceus, considering that It didn't come from a game I've owned. But how's the Porygon Z a hack, that I don't understand sorry.