A Shiny Rayquaza that's LV70 will be Distributed on Wi-Fi Connection March 17th through April 16th to celebrate the launch of Pokemon + Nobunaga's Ambition. It's OT will be ノブナガ, as it's Nobunaga's Rayquaza.. More details are still to come.
Ability: Air Lock
Date: 03/17 ~ 04/16
Distribution Type: Wi-Fi Connection
4gamer (Confirmation of Event)
Pokemon.co.jp (Official site announcement)
Event Gallery entry
PokeCheck / PKM Submission