Help with the champion

Suggestions on alternative Pokémon are Gengar and Scizor.

Gengar has access to Taunt and Levitate. That mean he can 6-0 Kyla and completely shut down Eduard’s lead.

Szicor is just SOO GOOD! With this set:

Scizor @ Metal Coat
Ability: Technician
EVs: 130 Hp / 252 Atk / 128 Spe
Adamant Nature
-Swords Dance
-Bullet Punch
-Bug Bite

Scizor still underspeed London’s Mega Reunicluss, resist his Focus Blast and setup a Swords Dance and then destroy his team barring Jellicent. He also wreak havoc to Yuki.