- This article is related to a Pokémon item.
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Black Sludge is an item in Generation IV that restores a little bit of health for Poison-type Pokémon each turn if the following Pokémon uses it as a held item. Other Pokémon that is not Poison will lose damage each turn if held. It can be sold for 100 Pokédollars.
They can be found on wild Croagunks and Toxicroaks in the Sinnoh region games while in Pokémon HeartGold and SoulSilver. Black Sludge can also be found in Cerulean Cave.