Hard Mode:

Brock: Mega-Aerodactyl, Ogerpon-Cornerstone,Terrakion, Iron Thorns, Omastar, Lycanroc

Aerodactyl @ Aerodactylite
Ability: Rock Head
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Stone Edge
- Earthquake
- Dual Wingbeat
- Dragon Dance

Ogerpon-Cornerstone @ Cornerstone Mask
Ability: Sturdy
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Ivy Cudgel
- Power Whip
- Stomping Tantrum

Terrakion @ Choice Band
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Stone Edge
- Close Combat
- Earthquake
- Quick Attack

Iron Thorns @ Booster Energy
Ability: Quark Drive
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Dragon Dance
- Supercell Slam
- Ice Punch
- Protect

Omastar @ Power Herb
Ability: Weak Armor
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Shell Smash
- Earth Power
- Surf
- Ice Beam

Lycanroc @ Life Orb
Ability: Sand Rush
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Stone Edge
- Close Combat
- Psychic Fangs
- Accelerock

Misty: Politoad, Mega-Gyarodos, Greninja, Kingdra, Barraskewda, Walking Wake

Politoed @ Life Orb
Ability: Drizzle
EVs: 252 HP / 252 SpA
Bold Nature
- Scald
- Ice Beam
- Hypnosis
- Earth Power

Barraskewda @ Choice Band
Ability: Swift Swim
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Liquidation
- Ice Fang
- Close Combat
- Crunch

Kingdra @ Choice Specs
Ability: Swift Swim
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- Weather Ball
- Draco Meteor
- Hurricane

Greninja @ Life Orb
Ability: Battle Bond
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Hydro Pump
- Dark Pulse
- Water Shuriken
- Ice Beam

Walking Wake @ Booster Energy
Ability: Protosynthesis
EVs: 12 HP / 244 SpA / 252 Spe
Timid Nature
- Hydro Steam
- Draco Meteor
- Flamethrower
- Dragon Pulse

Gyarados @ Gyaradosite
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Waterfall
- Crunch
- Earthquake

Lt. Surge: Mega-Manectric, Thunderus-Therian, Iron Hands, Galvantuala, Raichu-Alola, Rotom Wash

Galvantula @ Focus Sash
Ability: Compound Eyes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Sticky Web
- Thunder
- Bug Buzz
- Thunder Wave

Raichu-Alola @ Life Orb
Ability: Surge Surfer
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Rising Voltage
- Psychic
- Focus Blast
- Grass Knot

Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 108 HP / 184 SpA / 216 Spe
Modest Nature
- Nasty Plot
- Hydro Pump
- Discharge
- Dark Pulse

Thundurus-Therian @ Heavy-Duty Boots
Ability: Volt Absorb
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Volt Switch
- Thunderbolt
- Sludge Bomb
- Focus Blast

Iron Hands @ Booster Energy
Ability: Quark Drive
EVs: 252 Atk / 172 SpD / 84 Spe
Adamant Nature
- Swords Dance
- Drain Punch
- Thunder Punch
- Ice Punch

Manectric @ Manectite
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Hyper Voice
- Thunderbolt
- Flamethrower

Erika: Rillaboom, Serperior, Venusaur, Kartana, Mega-Sceptile, Iron Leaves

Rillaboom @ Choice Band
Ability: Grassy Surge
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Grassy Glide
- Wood Hammer
- U-turn
- Knock Off

Serperior @ Leftovers
Ability: Contrary
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Leaf Storm
- Glare
- Dragon Pulse
- Synthesis

Venusaur @ Life Orb
Ability: Chlorophyll
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
- Growth
- Weather Ball
- Giga Drain
- Sludge Bomb

Kartana @ Choice Scarf
Ability: Beast Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Leaf Blade
- Knock Off
- Sacred Sword
- Smart Strike

Iron Leaves @ Booster Energy
Ability: Quark Drive
EVs: 96 HP / 160 Atk / 252 Spe
Jolly Nature
- Swords Dance
- Leaf Blade
- Psyblade
- Close Combat

Sceptile @ Sceptilite
Ability: Overgrow
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Leaf Storm
- Dragon Pulse
- Focus Blast
- Vacuum Wave

Sabrina: Mega-Metagross, Iron Crown, Hatterene, Hoopa-Unbound, Medicham, 

Hatterene @ Leftovers
Ability: Magic Bounce
EVs: 252 HP / 204 Def / 52 Spe
Bold Nature
- Calm Mind
- Draining Kiss
- Psyshock
- Nuzzle

Medicham @ Choice Scarf
Ability: Pure Power
EVs: 252 Atk / 4 SpD / 252 Spe
Tera Type: Fighting
Jolly Nature
- Close Combat
- Zen Headbutt
- Ice Punch
- Thunder Punch

Hoopa-Unbound @ Choice Scarf
Ability: Magician
EVs: 248 SpA / 8 SpD / 252 Spe
Hasty Nature
- Hyperspace Fury
- Dark Pulse
- Psychic
- Thunderbolt

Armarouge @ Weakness Policy
Ability: Weak Armor
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Armor Cannon
- Expanding Force
- Energy Ball
- Calm Mind

Metagross @ Metagrossite
Ability: Clear Body
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Meteor Mash
- Zen Headbutt
- Hammer Arm
- Ice Punch

Iron Crown @ Booster Energy
Ability: Quark Drive
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Air Slash
- Psyshock
- Focus Blast
- Calm Mind

Koga: Salazzle, Beedrill-Mega, Sneasler, Iron Moth, Weezing-Galar, Pecharunt

Salazzle @ Focus Sash
Ability: Corrosion
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Nasty Plot
- Fire Blast
- Sludge Bomb
- Toxic

Sneasler @ Sitrus Berry
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Dire Claw
- Close Combat
- Throat Chop
- Swords Dance

Weezing-Galar @ Black Sludge
Ability: Neutralizing Gas
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Sludge Bomb
- Strange Steam
- Pain Split
- Will-O-Wisp

Iron Moth @ Booster Energy
Ability: Quark Drive
EVs: 124 Def / 132 SpA / 252 Spe
Timid Nature
- Fiery Dance
- Sludge Wave
- Dazzling Gleam
- Morning Sun

Pecharunt @ Air Balloon
Ability: Poison Puppeteer
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Nasty Plot
- Sludge Bomb
- Shadow Ball
- Recover

Beedrill @ Beedrillite
Ability: Swarm
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Poison Jab
- Drill Run
- Knock Off

Blaine: Arcanine-Hisui, Blaziken, Chi-yu, Marowak-Alola, Gouging Fire, Mega-Charizard Y

Arcanine-Hisui @ Heavy-Duty Boots
Ability: Rock Head
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Head Smash
- Flare Blitz
- Extreme Speed
- Stealth Rock

Blaziken @ Life Orb
Ability: Speed Boost
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Flare Blitz
- Protect

Chi-Yu @ Choice Specs
Ability: Beads of Ruin
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
- Overheat
- Flamethrower
- Fire Blast
- Dark Pulse

Marowak-Alola @ Thick Club
Ability: Rock Head
EVs: 212 HP / 252 Atk / 44 Spe
Adamant Nature
- Flare Blitz
- Shadow Bone
- Swords Dance
- Earthquake

Gouging Fire @ Loaded Dice
Ability: Protosynthesis
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Flare Blitz
- Scale Shot
- Earthquake

Charizard @ Charizardite Y
Ability: Blaze
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Flamethrower
- Focus Blast
- Solar Beam
- Roost

Giovanni: Excadrill, Rhyperior, Landorus, Ursaluna-Bloodmoon, Great Tusk, Mega-Mewtwo

Excadrill @ Focus Sash
Ability: Sand Rush
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Stealth Rock
- Iron Head
- Toxic
- Earthquake

Ursaluna-Bloodmoon @ Leftovers
Level: 100
Modest Nature
Ability: Mind's Eye
EVs: 252 HP / 4 Def / 252 SpA
- Earth Power
- Vacuum Wave
- Hyper Voice
- Calm Mind

Rhyperior @ Choice Band
Ability: Solid Rock
EVs: 92 HP / 252 Atk / 164 Spe
Adamant Nature
- Stone Edge
- Earthquake
- Megahorn
- Ice Punch

Landorus (M) @ Life Orb
Ability: Sheer Force
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Earth Power
- Focus Blast
- Psychic
- Nasty Plot

Great Tusk @ Rocky Helmet
Ability: Protosynthesis
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Headlong Rush
- Ice Spinner
- Rapid Spin
- Close Combat

Mewtwo @ Mewtwonite X
Ability: Pressure
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Poison Jab
- Earthquake
- Drain Punch
- Stone Edge