Effect Spore — Pokémon Ability

Has a 30% chance of inflcting either paralysis, poison, or sleep on attacking Pokémon on contact.

Effect notes

Whenever a move makes contact with this Pokémon, the move's user has a 30% chance of being paralyzed, poisoned, or put to sleep, chosen at random. Nothing is done to compensate if the move's user is immune to one of these ailments; there is simply a lower chance that the move's user will be affected.

In-game descriptions by version

ruby sapphireLeaves spores on contact.
emeraldLeaves spores on contact.
firered leafgreenLeaves spores on contact.
diamond pearlContact may paralyze, poison, or cause sleep.
platinumContact may paralyze, poison, or cause sleep.
heartgold soulsilverContact may paralyze, poison, or cause sleep.
black whiteContact may poison or cause paralysis or sleep.
black 2 white 2Contact may poison or cause paralysis or sleep.
x yContact may poison or cause paralysis or sleep.
omega ruby alpha sapphireContact may poison or cause paralysis or sleep.
sun moonContact with the Pokémon may inflict poison, sleep, or paralysis on its attacker.
ultra sun ultra moonContact with the Pokémon may inflict poison, sleep, or paralysis on its attacker.
lets go pikachu lets go eeveeContact with the Pokémon may inflict poison, sleep, or paralysis on its attacker.
sword shieldContact with the Pokémon may inflict poison, sleep, or paralysis on its attacker.
scarlet violetContact with the Pokémon may inflict poison, sleep, or paralysis on the attacker.

Pokémon with this ability