Spider Web is a non-damaging Bug-type move.
Spider Web prevents the target from switching out or fleeing (including via Teleport). The effect only applies as long as the Pokémon that used it remains in battle.
The affected Pokémon can still switch out via Baton Pass, but in that case, the Pokémon that switches in will now be affected. Conversely, the Pokémon that used Spider Web can switch out with Baton Pass and the effects of Spider Web will still apply. Also, if the affected Pokémon is Roared at or hit with a Whirlwind, they will still be switched out.
If a wild Pokémon uses Spider Web on the player's Pokémon, the player will be unable to escape, unless the player's Pokémon is holding a Smoke Ball. Pokémon affected by Spider Web can escape if the Pokémon has the ability Run Away.
If a Pokémon traps a target with Spider Web and then switches with Baton Pass the target will no longer be trapped. Pokémon affected by Spider Web can switch out with U-turn and Volt Switch. Also, Dragon Tail and Circle Throw will force the affected Pokémon to switch out.
By leveling up
| Bold indicates a Pokémon gains STAB from this move.|
Italics indicates a Pokémon whose evolution or alternate form receives STAB from this move.