Currently, Zygarde is available to download from the Nintendo Network until May 8th in North America. However, that’s not all of the Pokémon coming via Mystery Gift this month. A shiny Xerneas, as well as, a shiny Yveltal will be coming down the line to complete the Kalos legendaries.
From May 11th to May 17th, Xerneas will be made available via the Nintendo Network. It will be level 100 and will come with the moves Geomancy, Moonblast, Aromatherapy and Focus Blast. Then from May 20th to May 26th, Yveltal will become available and will have the moves Oblivion Wing, Sucker Punch, Dark Pulse and Foul Play. It will also be level 100 as well.
Check out the trailer from The Pokémon Company below for reference on all the details about these mythical Pokémon: