Suggester here.
Due to fan feedback, we have decided to alter the suggestion for future use.
Donnel Aura Break Zygarde 10%, the combined base power of its moves must not exceed 180 and you must have at least one special attack. You must name this forme after your first pet, or if you've never had a pet, after the mascot of your local football team.
When it gets a kill it evolves in Aura Break Zygarde 50%, who must be holding the item of the opposing pokemon Zygarde 10% defeated when it evolved. If it got more than one kill, you may choose between the items. One of Zygarde's moves must be Return, but for every Ice-, Fairy- and Dragon-type attack on your team, you must deduct 1 Happiness.
When Zygarde 50% gets a kill it evolves to Zygarde 50% with Power Construct. Banned moves for this form are: Thousand Arrows, Thousand Waves, Sandstorm, Rock Slide, Protect and Haze, but you are otherwise free to choose moves.
Must be holding Absolite.
