Change your preferences here.
Deals damage and has a 30% chance to poison the target.
Sludge is an awful competitive move, with much powerful options such as Sludge Bomb and Sludge Wave available. To make matters worse, Poison is not a very good attacking type, only hitting the Grass-type for super effective damage.
Sludge Bomb is a more powerful special Poison-type move.
Sludge Wave is a more powerful special Poison-type move, with only a 10% chance of poisoning the opponent.