Rayquaza-Mega @ Choice Scarf
Ability: Beast Boost
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Naive Nature
- Metronome

Altaria-Mega @ Leftovers
Ability: Filter
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Hasty Nature
- Metronome

Salamence-Mega @ Leftovers
Ability: Wonder Skin
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Hasty Nature
- Metronome

Zygarde-Complete @ Iapapa Berry
Ability: Speed Boost
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Hasty Nature
- Metronome

Celesteela @ Leftovers
Ability: Wonder Skin
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Hasty Nature
- Metronome

Dialga @ Leftovers
Ability: Speed Boost
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Careful Nature
- Metronome