Mono Psychic

Medicham @ Medichamite
Ability: Telepathy
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- High Jump Kick
- Ice Punch
- Fake Out
- Bullet Punch

Latias (F) @ Soul Dew
Ability: Levitate
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Defog
- Roost
- Psyshock
- Draco Meteor

Jirachi @ Normalium Z
Ability: Serene Grace
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Happy Hour
- Iron Head
- Energy Ball
- Fire Punch

Victini @ Choice Band
Ability: Victory Star
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- V-create
- U-turn
- Bolt Strike
- Trick

Deoxys @ Rocky Helmet
Ability: Pressure
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Ice Beam
- Taunt
- Stealth Rock
- Spikes

Gardevoir @ Choice Scarf
Ability: Trace
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Shadow Ball
- Psyshock
- Moonblast
- Focus Blast