You're up against a gauntlet of the 16 strongest trainers in Alola. Which Pokemon do you take on this gauntlet with?

>R1

Faba: Hypno, Alakazam
Ilima: Eevee, Smeargle, Mega Kangaskhan
Samson Oak: Komala, Vulpix, Alolan Exeggutor
Mallow: Tsareena, Shaymin
Mina: Ribombee
Sina: Wobbuffet, Mimikyu
Acerola: Shuppet, Gengar
Lillie: Alolan Vulpix

>R2

Dexio: Mareanie
Hau: Decidueye, Alolan Raichu
Sophocles: Togedemaru, Vikavolt
Lana: Primarina, Eevee

>R3

Kiawe: Charizard, Turtonator, Alolan Marowak
Guzma: Golisopod, Scizor

>R4

Gladion: Umbreon, Midnight Lycanroc, Silvally, Zoroark
Ash: Pikachu, Rowlet, Dusk Lycanroc, Torracat, Meltan (may evolve into Melmetal mid-match)