Suction Cups

 is a Pokémon ability introduced in the third generation. It prevents the Pokémon from switching out.

Description
Pokémon with Suction Cups cannot be forced to switch out or flee by the opponent. This includes moves like Roar, Dragon Tail and Circle Throw as well as the item Red Card. A Pokémon with Suction Cups cannot be forced to switch or flee even if it is Ghost-type or holds a Smoke Ball or Shed Shell. Suction Cups does not prevent the Pokémon from using Fleeing moves like Teleport or Baton Pass or items like Eject Button.

When fishing, if a  Pokémon with Suction Cups is in the first position,  Pokémon will bite more often.

Pokémon with Ability

 * Octillery
 * Lileep
 * Cradily
 * Inkay
 * Malamar

Trivia

 * It shares its out of battle effect with Sticky Hold.