my ou team maybe

Ability: Serene Grace
EVs: 248 HP / 228 SpD / 32 Spe
Careful Nature
- Iron Head
- Thunder Wave
- Wish
- Substitute

Sigilyph @ Flame Orb
Ability: Magic Guard
EVs: 248 HP / 8 SpA / 252 SpD
Calm Nature
- Cosmic Power
- Psycho Shift
- Roost
- Stored Power

Garchomp @ Garchompite
Ability: Rough Skin
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
IVs: 30 Atk / 30 SpA
- Dragon Tail
- Swords Dance
- Dragon Claw
- Outrage

Vivillon @ Wide Lens
Ability: Compound Eyes
EVs: 248 HP / 252 Def / 8 SpA
Bold Nature
- Quiver Dance
- Roost
- Sleep Powder
- Signal Beam

Magnezone @ Leftovers
Ability: Sturdy
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
- Flash Cannon
- Thunder Wave
- Toxic
- Volt Switch