The Pokémon is unaffected by the moves and held items of other Pokémon that would force it to switch out of battle.
Suction Cups (Japanese: きゅうばんSuction Cups) is an Ability introduced in Generation III.
Effect
In battle
Suction Cups prevents other Pokémon from forcing the Pokémon with this Ability to switch out or flee using moves (e.g. Roar, Circle Throw) or items such as Red Card. It does not prevent the Pokémon from switching out manually, or from switching out or fleeing using its own moves (e.g. Baton Pass, Teleport) or items such as Eject Button.
Even if the Pokémon with this Ability is Ghost-type or is holding a Shed Shell or Smoke Ball, it still cannot be forced to switch out or flee. If the Pokémon is under the effect of Ingrain, Suction Cups takes priority over Ingrain when it would be forced to switch out or flee.
If a Pokémon with Suction Cups hits a Pokémon holding a Red Card, the Red Card will activate and be consumed, but it will fail to force that Pokémon to switch out or flee.
Outside of battle
This Ability effect may be in need of research. Reason:In Generation VII, does Suction Cups only make Pokémon fishing encounters more common, or does it make hooking anything more common? You can discuss this on the talk page.
From Pokémon Emerald onwards, if a Pokémon with Suction Cups is in first place in the player's party (even if fainted), bites will occur more often while fishing. Sticky Hold has the same effect.
In Pokémon Super Mystery Dungeon, Pokémon with this Ability cannot be blown away (such as by Roar or Whirlwind Wand), or warped, but can be forced to move (such as by Baton Pass or U-turn).
