The Pokemon Company is still trucking with their legendary Pokemon celebration, and coming off of Yveltal and Xerneas, the legendaries from the previous generation of X & Y, is Zygarde from the current gen.
To be clear it's a shiny Zygarde, and will have different stats depending on which version of the game you own -- Sun/Moon (level 100, with gold bottle cap, dragon dance, extreme speed, outrage, and thousand arrows) or Ultra Sun/Ultra Moon (level 60, dragon breath, land's wrath, safeguard, glare).
You can grab your Zygarde (one for each copy of the game) from June 1 until June 24 at GameStop. After catching every Pokemon from the Ultra duo I've cooled off a bit, and am basically just waiting for the Switch edition. Bring it on!
via destructoid https://www.destructoid.com/psa-zygarde-is-the-next-free-legendary-pokemon-504610.phtml