If another Pokemon burns/poisons/paralyzes this Pokemon, it also gets that status.
Pokémon with Synchronize
Mew
Espeon
Umbreon
Ralts
Kirlia
Gardevoir
IndeedeeIndeedee-F
RabscaSynchronize
Scarlet & Violet
Scarlet & VioletShowing Scarlet & Violet. Items may require trading, an event, or downloadable content.
MewEspeonUmbreonRaltsKirliaGardevoirIndeedeeRabscaSources: PokéAPI, PKHeX game records, Pokémon Showdown and Serebii.