Mawile-Mega @ Mawilite  
Ability: Intimidate  
EVs: 88 HP / 252 Atk / 168 Spe or 120 HP / 216 Atk / 4 SpD / 168 Spe 
Adamant Nature  
- Iron Head  
- Fire Fang  
- Thunder Punch  
- Ice Punch  

Greninja @ Choice Scarf  
Ability: Protean  
EVs: 176 Atk / 80 SpA / 252 Spe  
Naive Nature  
- Ice Beam  
- Rock Slide  
- U-turn  
- Low Kick  

Tapu Koko @ Choice Specs  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Volt Switch  
- Dazzling Gleam  
- Hidden Power [Ice]  

Toxapex @ Black Sludge / Iapapa Berry 
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Haze  
- Recover  
- Toxic / Toxic Spike 

Ferrothorn (F) @ Leftovers  
Ability: Iron Barbs  
EVs: 248 HP / 84 Def / 8 SpA / 168 SpD  
Sassy Nature  
- Power Whip  
- Hidden Power [Fire]  
- Leech Seed  
- Spikes  

Landorus-Therian @ Rocky Helmet  
Ability: Intimidate  
EVs: 108 HP / 252 Def / 148 Spe  
Jolly Nature  
- Earthquake  
- U-turn  
- Toxic  
- Stealth Rock