• With its wide range of moveset options and its offense-boosting ability Sharpness, Gallade is excellent at dueling a wide variety of threats. Especially notable is Scared Sword, letting Gallade ignore Stamina Archaludon's accumulated boosts.

• Night Slash versus Knock Off: Night Slash's consistent power is best for pure offense, potentially 2HKOing targets like Bold Gholdengo, assuming they can't stall with Recover and Rocky Helmet. If more utility is desired, Knock Off can be used for removing opposing items.

• Shadow Sneak: Shadow Sneak Gallade's most consistent as a priority move, dealing good damage to targets like Gholdengo and Mimikyu.

• Leaf Blade: Leaf Blade OHKOes Primarina and is Gallade's best hope of muscling past Dondozo.

• Triple Axel: Though it suffers from some reliability issues, Triple Axel makes Dragonite rue the day it didn't Terastallize against Gallade!

Other Options

• Aqua Cutter: Aqua Cutter benefits from Sharpness, but it doesn't add a lot of extra coverage.

• Feint: Feint lets Gallade pick off weakened Dragonite before they can launch Extreme Speed, but otherwise hitting Gholdengo with Shadow Sneak is usually more useful.

Tera Types

• Tera Dependency - Low: Gallade uses Focus Sash or Assault Vest as its main tool for cushioning a big hit and has great natural coverage. Therefore, Tera is reserved mostly for emergency situations.

• Fire: Beyond offering a useful Fairy-type resistance, Tera Fire blocks Volcarona from burning Gallade.

• Dark: Tera Dark not only boosts Night Slash and Knock Off, but provides a key Ghost-type resistance against Gholdengo.

• Steel: Tera Steel flips Gallade's weakness to Fairy-type attacks to a resistance. The Ice resistance can also be used in a pinch to keep Baxcalibur's Icicle Spear from OHKOing Gallade through Focus Sash.

• Ghost: Tera Ghost's immunity to Normal- and Fighting-type moves can thwart revenge kill attempts from Mach Punch users and Extreme Speed Dragonite, giving Gallade an opportunity to break Multiscale on the latter.

Items

• Assault Vest: Gallade has enough Special Defense to make good use of Assault Vest, which lets it survive Tera Normal Ursaluna-B. Compared to Focus Sash, Assault Vest isn't rendered useless by Stealth Rock chip, making Gallade a safer mid- or late-game option.

• Focus Sash: With Focus Sash, Gallade duels opposing Focus Sash users with its hard-hitting STAB attacks and priority moves, letting it focus on Speed investment.

• Scope Lens: While Scope Lens is risky due to Gallade's average bulk and Speed, it pairs well with the increased critical hit ratio many of Gallade's attacks have.

EV Spreads

• 140 HP / 244 Atk / 4 Def / 4 SpD / 116 Spe with Adamant: This spread is to be used with Assault Vest, surviving Silk Scarf Tera Normal Ursaluna-B's Blood Moon and Vacuum Wave together, while outspeeding even Timid Ursaluna-B and Jolly Ursaluna.

• 4 HP / 252 Atk / 252 Spe with Adamant or Jolly: A maximum offense spread is standard for Focus Sash and Speed ties with offensive Adamant Dragonite. Jolly can be used to get the jump on Modest Archaludon, especially if using Shadow Sneak to stop Sturdy variants from activating Custap Berry in time.

• 236 HP / 244 Atk / 28 SpD with Adamant: Sacrificing Speed for bulk lets Assault Vest Gallade survive Life Orb Tera Normal Ursaluna-B's Blood Moon followed by Vacuum Wave.

• With Choice Scarf, Gallade is a decent anti-lead against several early-game setups and an unexpected revenge killer.

• Knock Off versus Night Slash: Knock Off remains a strong disruption move with or without Trick, provided you exercise caution if you've already used Trick. Night Slash has more offensive presence than Knock Off and is a good choice if you really need to hit Gholdengo with consistent damage.

• Triple Axel versus Leaf Blade: Triple Axel makes Gallade a surprising revenge killer against Garchomp and severely punishes Dragonite that don't Terastallize. Leaf Blade helps against more defensive foes, being a great coverage option for slashing through Primarina and being your best move against Dondozo.

• Trick: Trick with Choice Scarf lets Gallade permanently cripple setup Pokemon like Annihilape and Garganacl.

Tera Types

• Tera Dependency - Low: Choice Scarf Gallade normally isn't a strong user of Tera. It is best used in situations where Gallade already has momentum and needs to preserve it.

• Fire: Tera Fire makes facing down Volcarona far less risky thanks to the burn immunity, as well as providing a useful Fairy-type resistance.

• Steel: Tera Steel provides a welcome resistance to Fairy-type attacks and Dragonite's Extreme Speed.

• Dark: Tera Dark stops Choice Scarf Gholdengo from revenge killing with Shadow Ball, while boosting Night Slash and Knock Off

• Ghost: Tera Ghost grants immunity to Extreme Speed and Mach Punch, letting Gallade keep its speed advantage against Dragonite and Breloom even when its low on health.

• Grass: Tera Grass can surprise Spore users like Breloom, letting Gallade score an easy KO or cripple them with Trick. Leaf Blade also becomes a 2HKO against Dondozo.