Demo Darkari was a preview event I believe for the movie 07 Darkari. For a time it wasn't allowedd here since it was a preview, and thus seemed more like a hack, but was allowed back in trades. The only real difference from the actual movie edition is that it has a modest nature.
Palcity Lucario-
1. 140/114/82/141/86/109
2. 139/117/88/147/89/108
(The shiny Azelf I warn you, I'm not sure if it's legit. IVs are fine I believe, but it could possibly be a hack.)
I'm interested in-
The Timid Latios (do you know IVs? or was it leveled by training or rare candies?)
New Moon shiny Darkari (you sure it's legit? sorry to sound noobish)
08 Lucario
Baba Flygon
Shiny Mew (Is it in Japanesse? and from the event island? sorry I forget the name of it)
Shiny Totodile