>>17594689It's a very effective bulky attacker. It's defensive stats make it tougher than Hippowdon physically, and Mew specially. Land's Wrath is actually good in Doubles, as it only hits your opponents, but is thoroughly outclassed by EQ in singles.
While some people seem to think that Zygarde is an inferior Garchomp/insert DD user here, its best sets tend to focus on slowly overpowering foes. I feel that Coil/EQ/Stone Edge/ESpeed is Zygarde's best set at the moment. Outrage isn't very good on a boosting attacker right now, and Dragon Tail is weak, so Zygarde's Dragon STAB can be safely ignored, though it would've liked Dragon Rush. ESpeed can be dropped for Substitute, depending on how bulky you want Zygarde to be. Finally, you could swap out Coil for Dragon Tail on an Assault Vest set, though that would be of dubious quality.
All in all, Zygarde is a severely underrated Pokemon that can be rather effective at deciding the balance of the battle.