Moves
Thousand Arrows deals great damage to most neutral targets and forces out offensive threats such as Raikou, Drapion, and Houndoom. Outrage is Zygarde-10%'s secondary STAB move, allowing it to 2HKO most Pokemon that resist Thousand Arrows. Examples include Shaymin, Virizion, and Araquanid. Extreme Speed is a reliable revenge killing measure against faster threats like Choice Scarf Gardevoir, Noivern, weakened Donphan, and Salazzle after prior damage. Toxic is a utility move that allows Zygarde-10% to cripple defensive Pokemon, such as Cresselia, Slowbro, and Tangela, putting them on a timer every time they switch into it. Earthquake's greater damage output, however, can guarantee a 2HKO against Mega Blastoise and offer more damage against various threats without getting locked into Outrage.
Set Details
Choice Band greatly increases Zygarde-10%'s raw power and damage output. A Jolly nature with maximum Attack and Speed investment is needed to outspeed threats such as Virizion and Lycanroc-D. You can run an Adamant nature so that Zygarde-10% can 2HKO Slowbro, Uxie, and Porygon2 with Outrage after Stealth Rock but Adamant fails to outpace Pokemon such as the aforementioned Pokemon.
Usage Tips
Most of the time, Zygarde-10% will use Thousand Arrows due to its great capability of hitting most Pokemon on the tier. Outrage is a great tool to break opposing Pokemon that resist Thousand Arrows such as Shaymin, which can allow Zygarde-10%'s teammates to win the game later on as they are removed from the opposing team. However, be aware of Steel- and Fairy-types that can come into Outrage and knock it out. Against faster Pokemon and setup sweepers, Zygarde-10%'s partners must get these Pokemon weakened enough so Zygarde-10% can revenge kill them or clean with Extreme Speed. Toxic is a great way to give Zygarde-10%'s walls a hard time, since the likes of Slowbro and Cresselia will be forced to recover way more often. Zygarde-10% must be aware of which move it locks itself into, as it can be taken advantage of by opposing Pokemon, especially those that usually carry Protect, such as Bronzong and Registeel.
Team Options
Fighting-types like Machamp, Pangoro, and Toxicroak can be great partners to Zygarde-10% due to their access to Knock Off and Ice-type coverage, which allows them to take on common defensive roadblocks such as Tangela, Cresselia, and Donphan. Drapion is a great partner to Zygarde-10%, as it can trap most Psychic-types with a Choice Band set, such as Slowbro, Cresselia, and Uxie, and beat other checks such as Donphan, Porygon2, and Tangela with its Swords Dance + Waterium Z set. Raikou, Swellow, and Yanmega can offer wallbreaking power and utility with Volt Switch and U-turn, as they can pivot Zygarde-10% in safely against their own checks and counters, such as Registeel, Tyrantrum, and Bronzong. Mega Abomasnow and Vanilluxe greatly appreciate Zygarde-10%'s ability to take out Steel-types, while they can reliably beat Slowbro and Milotic. Setup sweepers such as Barbaracle and Cloyster are great alongside Zygarde-10%, as it can weaken common defensive Pokemon so they can clean the game later on. Roserade, Forretress, and Accelgor can set up Spikes on the field, which makes Zygarde-10%’s work easier due to the chip damage its checks take every time they come into the field while Spikes are up.