The user soaks the floor beneath the opposing team with slippery oil, making their footing treacherous and direct contact attacks difficult.
The user sprays the ground at the opponents' feet with a thick, slippery substance. The oil dries up after a few turns, but opponents who try to charge forward and attack while the oil slick is fresh are likely to slip and fall before reaching their target.
For the next five turns (including this one), if a Pokémon on the opponent's side of the field tries to use a move with the Makes contact flag, there is a 75% chance that that move will fail. The 75% failure chance is calculated independently of any applicable Accuracy or Evasion modifications. This move will fail if used while an Oil Slick is already in effect on the opponent's side of the field. Pokémon that are in the air (Flying-types, Pokémon with Levitate, Pokémon holding an Air Balloon, etc.) are immune to the effects of Oil Slick for as long as they remain in the air and can use contact attacks as normal.