Webs+Diancie Bulky Offense

Araquanid @ Splash Plate
Ability: Water Bubble
EVs: 24 HP / 236 Atk / 20 Def / 228 Spe
Adamant Nature
- Sticky Web
- Liquidation
- Lunge
- Toxic

Diancie-Mega @ Diancite
Ability: Magic Bounce
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Diamond Storm
- Moonblast
- Earth Power
- Hidden Power [Fire]

Muk-Alola @ Assault Vest
Ability: Poison Touch
EVs: 224 HP / 252 Atk / 32 Spe
Adamant Nature
- Knock Off
- Gunk Shot
- Pursuit
- Fire Punch

Latias @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psyshock
- Draco Meteor
- Trick
- Healing Wish

Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 80 Def / 176 SpD
Impish Nature
- Stealth Rock
- Slack Off
- Earthquake
- Whirlwind

Cobalion @ Fightinium Z
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Iron Head
- Close Combat
- Stone Edge