Eternatus VMAX 117/189 (SWSH03: Darkness Ablaze) - Holofoil

Ability — Eternal Zone If all of your Pokémon in play are Darkness type, you can have up to 8 Pokémon on your Bench and you can't put non-Darkness Pokémon into play. (If this Ability stops working, discard Pokémon from your Bench until you have 5.)