Glimmora ex · Paldean Fates (PAF) #218

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.

{F}{F} → Poisonous Gem : 140
Your opponent’s Active Pokémon is now Poisoned.