Help!

=== [ou] XY ===

Charizard-Mega-Y @ Charizardite Y
Ability: Drought
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Dragon Pulse
- Fire Blast
- Solar Beam
- Focus Blast

Klefki @ Light Clay
Ability: Prankster
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
- Foul Play
- Light Screen
- Reflect
- Thunder Wave

Smeargle @ Leftovers
Ability: Own Tempo
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
- Spore
- Stealth Rock
- Sticky Web
- Rapid Spin

Tyranitar @ Chople Berry
Ability: Sand Stream
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Pursuit
- Superpower
- Dragon Dance
- Stone Edge

Landorus-Therian (M) @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Knock Off
- Stone Edge
- Earthquake
- U-turn

Amoonguss @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
- Giga Drain
- Sludge Bomb
- Spore
- Toxic