My Gen 7 OU Team

Cottonee @ Focus Sash
Ability: Prankster
Level: 1
EVs: 252 Spe
Serious Nature
IVs: 0 Atk
- Leech Seed
- Substitute
- Protect
- Tailwind

Kartana @ Choice Scarf
Ability: Beast Boost
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Leaf Blade
- Smart Strike
- Sacred Sword
- Night Slash

Latios @ Dragonium Z
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Calm Mind
- Draco Meteor
- Psychic
- Surf

Greninja-Ash @ Choice Specs
Ability: Battle Bond
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Surf
- Dark Pulse
- Ice Beam
- Water Shuriken

Tapu Koko @ Choice Band
Ability: Electric Surge
EVs: 4 HP / 252 Atk / 252 Spe
Naive Nature
- Wild Charge
- U-turn
- Volt Switch
- Brave Bird

Gardevoir-Mega @ Gardevoirite
Ability: Pixilate
EVs: 176 SpA / 80 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Hyper Voice
- Calm Mind
- Thunderbolt
- Psychic