Frisk

Frisk is an ability in Polished Crystal that allows the user to check the held item of an opposing Pokémon upon entering battle. This can provide information about the opponent's strategy ahead of time and help the user plan their moves accordingly. Considering that the AI in Polished Crystal has been improved versus vanilla Crystal, this ability can be quite useful for players looking to gain an advantage in battles.

Frisk is guarenteed on Alolan Executor in Polished Crystal with most other Pokémon having a chance of having it as their hidden ability.