Sun and Moon do not really have a rival in the classic sense: rather, three friends who grow up alongside you. Hau, always cheerful, Lillie, who hides a secret in her bag, and Gladion, the loner. Here is their journey and all their battles.
😊Hau
The grandson of Kahuna Hala starts his island challenge at the same time as you. He always picks the starter that is at a disadvantage against yours, catches a Pichu, then evolves an Eevee into the type that gives you trouble. More than a rival, he is a travel companion, who often helps you in Double Battles.

Hau

- Pound
- Water Gun
- Growl
Ability: Torrent

- Tackle
- Leafage
- Growl
Ability: Overgrow

- Scratch
- Ember
- Growl
Ability: Blaze

- Charm
- Thunder Shock
- Tail Whip
Ability: Static

- Pound
- Water Gun
- Growl
Ability: Torrent

- Charm
- Thunder Shock
- Tail Whip
Ability: Static

- Tackle
- Leafage
- Growl
Ability: Overgrow

- Charm
- Thunder Shock
- Tail Whip
Ability: Static

- Scratch
- Ember
- Growl
Ability: Blaze

- Electro Ball
- Play Nice
- Growl
- Quick Attack
Ability: Static

- Water Gun
- Baby-Doll Eyes
- Growl
- Disarming Voice
Ability: Torrent

- Electro Ball
- Play Nice
- Growl
- Quick Attack
Ability: Static

- Astonish
- Leafage
- Peck
- Growl
Ability: Overgrow

- Electro Ball
- Play Nice
- Growl
- Quick Attack
Ability: Static

- Leer
- Ember
- Lick
- Growl
Ability: Blaze

- Electro Ball
- Quick Attack
Ability: Static

- Aqua Jet
- Pound
- Disarming Voice
Ability: TorrentItem: Normalium Z

- Electro Ball
- Quick Attack
Ability: Static

- Tackle
- Peck
- Razor Leaf
Ability: OvergrowItem: Normalium Z

- Electro Ball
- Quick Attack
Ability: Static

- Fire Fang
- Scratch
- Lick
Ability: BlazeItem: Normalium Z

- Aqua Jet
- Pound
- Disarming Voice
Ability: TorrentItem: Normalium Z

- Tackle
- Peck
- Razor Leaf
Ability: OvergrowItem: Normalium Z

- Fire Fang
- Scratch
- Lick
Ability: BlazeItem: Normalium Z

- Electro Ball
- Psychic
- Quick Attack
Ability: Surge Surfer

- Fire Fang
- Quick Attack
Ability: Flash Fire

- Bubble Beam
- Disarming Voice
Ability: TorrentItem: Waterium Z

- Electro Ball
- Psychic
- Quick Attack
Ability: Surge Surfer

- Water Pulse
- Quick Attack
Ability: Water Absorb

- Razor Leaf
- Pluck
Ability: OvergrowItem: Grassium Z

- Electro Ball
- Psychic
- Quick Attack
Ability: Surge Surfer

- Giga Drain
- Quick Attack
Ability: Leaf Guard

- Fire Fang
- Bite
Ability: BlazeItem: Firium Z

- Focus Blast
- Psychic
- Thunderbolt
- Quick Attack
Ability: Surge Surfer

- Sucker Punch
- Shadow Claw
- Wood Hammer
- Earthquake
Ability: Comatose

- Flare Blitz
- Charm
- Baby-Doll Eyes
- Quick Attack
Ability: Flash Fire

- Sparkling Aria
- Hyper Voice
- Moonblast
Ability: TorrentItem: Waterium Z

- Focus Blast
- Psychic
- Thunderbolt
- Quick Attack
Ability: Surge Surfer

- Sucker Punch
- Shadow Claw
- Wood Hammer
- Earthquake
Ability: Comatose

- Charm
- Hydro Pump
- Baby-Doll Eyes
- Quick Attack
Ability: Water Absorb

- Smack Down
- Leaf Blade
- Spirit Shackle
Ability: OvergrowItem: Grassium Z

- Focus Blast
- Psychic
- Thunderbolt
- Quick Attack
Ability: Surge Surfer

- Sucker Punch
- Shadow Claw
- Wood Hammer
- Earthquake
Ability: Comatose

- Charm
- Leaf Blade
- Baby-Doll Eyes
- Quick Attack
Ability: Leaf Guard

- Flare Blitz
- Darkest Lariat
- Earthquake
Ability: BlazeItem: Firium Z
Seven battles, from Iki Town to Mount Lanakila, depending on your starter. Pikachu evolves into Alolan Raichu between Paniola Town and Malie City.
🌸Lillie
Lillie never battles: she hates seeing Pokémon suffer. Professor Kukui’s assistant, she protects Cosmog, which she took with her when she fled Aether Paradise. You gradually discover that she is the daughter of Lusamine, the president of the Aether Foundation, and Gladion’s sister. After the rescue at Aether Paradise, she changes her outfit and her personality: determined, she takes her destiny into her own hands all the way to the Altar.
🌑Gladion
At first recruited as muscle by Team Skull, Gladion nonetheless battles alone, with Type: Null, a Pokémon he stole from the Aether Foundation to protect it. He is trying to stop his mother from using Cosmog. After the League, he entrusts a Type: Null to you.

Gladion

- Bite
- Wing Attack
Ability: Inner Focus

- Tackle
- Pursuit
Ability: Battle Armor

- Poison Fang
- Acrobatics
Ability: Inner Focus

- Icy Wind
- Metal Claw
- Feint Attack
- Quick Attack
Ability: Inner Focus

- Crush Claw
- Pursuit
- X-Scissor
Ability: Battle Armor

- Acrobatics
- Poison Fang
Ability: Inner Focus

- Pursuit
- Crush Claw
- X-Scissor
Ability: Battle Armor
From Route 5 to Mount Lanakila: Type: Null becomes Silvally, freed from its helmet by friendship.
Hau and Gladion come back as challengers when you defend your Champion title. See the League and the Elite Four.


