Mono psychic fun

Gallade-Mega @ Galladite
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Knock Off
- Zen Headbutt
- Swords Dance
- Close Combat

Slowking @ Leftovers
Ability: Regenerator
EVs: 252 HP / 12 SpA / 244 SpD
Calm Nature
IVs: 0 Atk
- Scald
- Psychic
- Disable
- Thunder Wave

Xatu @ Firium Z
Ability: Magic Bounce
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Dazzling Gleam
- Heat Wave
- Calm Mind
- Roost

Mew @ Leftovers
Ability: Synchronize
EVs: 236 HP / 252 Def / 20 Spe
Bold Nature
IVs: 0 Atk
- Roost
- Taunt
- Will-O-Wisp
- Defog

Latios @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Draco Meteor
- Psyshock
- Thunderbolt
- Hidden Power [Fire]

Azelf @ Focus Sash
Ability: Levitate
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Flamethrower
- Explosion
- Stealth Rock
- Psyshock