So, someone update me. Is the Diancie, at this point, STILL untradeable?
I know someone posted on Tumblr (to be specific, two users, both of whose posts I since reblogged to my page) said they couldn't use the Diancie in online battles, but I'm still not sure about the trading issue. If they couldn't battle with it, there could be a chance that it may be unable to be traded as well, and that means if one wants to get it over to OR/AS they'll have to do it via Pokemon Bank which can be a fiddly process.
I could already imagine some people may not even want to get the Diancie now if they found out about these limitations. I already hate how terribly event distributions this generation have been going so far, not only has there been a severe lack of global wi-fi events (only ones I know of are Blazikenite Torchic, Fancy Vivillon and the recent Super Size Pumpkaboo) but almost every event barring those have either been exclusive to a certain country or have those single-use codes which I think is a stupid way to distribute event Pokemon.
Game Freak are like being totally literal with the term "region-locked" here.