Blissey (F) @ Leftovers  
Ability: Natural Cure  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Heal Bell  
- Ice Beam  
- Confide  

Zygarde-Complete @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Coil  
- Rest  
- Dragon Tail  
- Thousand Arrows  

Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Hex  
- Substitute  
- Destiny Bond  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 252 HP / 164 Def / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Will-O-Wisp  
- Recover  
- Stealth Rock  

Ho-Oh @ Leftovers  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Sacred Fire  
- Defog  
- Toxic  
- Whirlwind  

Giratina @ Leftovers  
Ability: Pressure  
EVs: 248 HP / 208 Def / 52 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Toxic  
- Will-O-Wisp  
- Rest  
- Defog