Utter crap

Amoonguss @ Black Sludge
Ability: Regenerator
EVs: 248 HP / 168 Def / 92 SpD
Bold Nature
IVs: 0 Atk
- Clear Smog
- Giga Drain
- Spore
- Sludge Bomb

Charizard-Mega-X @ Charizardite X
Ability: Tough Claws
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Will-O-Wisp
- Roost
- Fire Punch
- Dragon Claw

Klefki @ Leftovers
Ability: Prankster
EVs: 248 HP / 8 Def / 252 SpD
Careful Nature
- Thunder Wave
- Play Rough
- Foul Play
- Spikes

Landorus-Therian @ Earth Plate
Ability: Intimidate
EVs: 176 HP / 252 Atk / 80 Spe
Adamant Nature
- Stealth Rock
- Earthquake
- Stone Edge
- Knock Off

Latios @ Life Orb
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Defog
- Roost
- Psyshock
- Draco Meteor

Manaphy @ Leftovers
Ability: Hydration
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Tail Glow
- Rain Dance
- Scald
- Energy Ball