Cobalion + Starmie

Cobalion @ Fightinium Z
Ability: Justified
EVs: 64 HP / 192 Atk / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Iron Head
- Rock Polish

Klefki @ Leftovers
Ability: Prankster
EVs: 252 HP / 92 Atk / 164 Def
Impish Nature
- Play Rough
- Spikes
- Magnet Rise
- Magic Coat

Altaria-Mega @ Altarianite
Ability: Natural Cure
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Facade
- Earthquake
- Roost

Starmie @ Leftovers
Ability: Natural Cure
EVs: 240 HP / 144 Def / 28 SpA / 80 SpD / 16 Spe
Bold Nature
IVs: 0 Atk
- Recover
- Ice Beam
- Thunderbolt
- Rapid Spin

Heracross @ Choice Scarf
Ability: Moxie
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Close Combat
- Megahorn
- Knock Off
- Earthquake

Toxicroak @ Expert Belt
Ability: Dry Skin
EVs: 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Wave
- Focus Blast
- Vacuum Wave
- Nasty Plot