|The user lays a trap of poison spikes at the feet of the opposing team. The spikes will poison opposing Pokémon that switch into battle.|
Toxic Spikes sets an entry hazard around the target Pokémon. One layer of Toxic Spikes causes opposing Pokémon to acquire the Poison status ailment upon switching in, while two or more layers causes opposing Pokémon to become badly poisoned.
Toxic Spikes has no effect against Flying-type, Poison-type, or Steel-type Pokémon or Pokémon with the AbilityImmunity, Levitate, Leaf Guard (during intense sunlight) or Magic Guard. However, a Flying or Levitating Pokémon will be affected if it is switched in while holding an Iron Ball, while Gravity is in effect or if Baton Passed an Ingrain. If a Poison-type Pokémon that is not also a Flying-type or has the Ability Levitate is switched in, it will absorb Toxic Spikes and the effect of Toxic Spikes will end. Also, if a Poison-type Pokémon that is also a Flying-type or has the Ability Levitate is switched in holding the item Iron Ball or while Gravity is in effect, it will absorb Toxic Spikes. The moves Rapid Spin and Defog remove the effect of Toxic Spikes; Rapid Spin removes Toxic Spikes set around the user of Rapid Spin while Defog removes Toxic Spikes set around the target of Defog.
If a Pokémon is holding an Air Balloon, it will not be affected by Toxic Spikes, unless Gravity is in effect. A Poison-type Pokémon holding an Air Balloon will not absorb Toxic Spikes, unless Gravity is in effect.Toxic Spikes does not activate the Ability Synchronize unless a Pokémon on the field directly causes Synchronizing Pokémon to switch in, such as by using the moves Roar or Whirlwind.
Toxic Spikes can also be reflected with Magic Coat. Magic Guard will not prevent poisoning status but will prevent poison damage.