Immunityin Pokémon Polished Crystal

Immunity is an ability that prevents the user from being poisoned, even with Toxic! This is especially useful against opponents that rely on poison status to wear down your team over time. Snorlax is a notable Pokémon that has Immunity as its primary ability in Polished Crystal. Considering poisoning a Snorlax would be a common strategy due to its high HP and bulk to slowly chip away at its health, Immunity allows it to avoid this status condition entirely. Pairs best with Leftovers.