Magearna @ Safety Goggles  
Ability: Flash Fire  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Entrainment  
- Topsy-Turvy  
- Shore Up  
- Anchor Shot  

Cresselia @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Revelation Dance  
- Rapid Spin  
- U-turn  
- Spectral Thief  

Giratina @ Darkinium Z  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Sassy Nature  
- Skill Swap  
- Heal Order  
- Toxic Spikes  
- Spectral Thief  

Rayquaza-Mega @ Choice Specs  
Ability: Desolate Land  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Blue Flare  
- Draco Meteor  
- Core Enforcer  
- Moongeist Beam  

Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Facade  
- Shift Gear  
- Knock Off  
- Spore  

Beedrill-Mega @ Choice Band  
Ability: Poison Touch  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- V-create  
- Poison Jab  
- Trick