Hoopa-Unbound @ Choice Band  
Ability: Magician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Hyperspace Fury  
- Drain Punch  
- Zen Headbutt  
- Gunk Shot  

Hydreigon @ Darkinium Z  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Dark Pulse  
- Flash Cannon  
- Roost  

Hippowdon @ Eject Button  
Ability: Sand Stream  
EVs: 248 HP / 152 Def / 108 SpD  
Impish Nature  
- Stealth Rock  
- Earthquake  
- Slack Off  
- Whirlwind  

Hatterene (F) @ Assault Vest  
Ability: Magic Bounce  
EVs: 252 HP / 20 SpA / 104 SpD / 132 Spe  
Modest Nature  
- Psyshock  
- Draining Kiss  
- Mystical Fire  
- Nuzzle  

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 216 SpD / 40 Spe  
Calm Nature  
IVs: 0 Atk  
- Magma Storm  
- Earth Power  
- Toxic  
- Taunt  

Heliolisk @ Choice Scarf  
Ability: Dry Skin  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Hyper Voice  
- Grass Knot  
- Volt Switch