Glimmora ex - 111/190 - SV4a: Shiny Treasure ex (SV4a) - Double Rare (Japanese)

Ability: Dust Field As long as this Pokémon is in the Active Spot, your opponent can't have more than 3 Benched Pokémon. If they have 4 or more Benched Pokémon, they discard Benched Pokémon until they have 3 Pokémon on the Bench. If more than one effect changes the number of Benched Pokémon allowed, use the smaller number.

[Fighting][Fighting] Poisonous Gem (140)
Your opponent's Active Pokémon is now Poisoned.