The Black Sludge is a hold item that restores the health of Poison-Type Pokémon at the end of every turn (like Leftovers does for all Pokémon). However, if the holder is not a Poison type, this item takes some HP away at the end of each turn. It was first introduced in Generation IV.
Found in Cerulean Cave.
Wild Croagunk and Toxicroak hold it 5% of the time.
Wild Croagunk, Toxicroak, Trubbish, & Garbodor can be found holding this item. Garbodor has a 50% chance of holding this item while the other 3 have it 5% of the time. In this Generation, a Pokémon with the Pickup Ability can pick this item up if it isn't already holding an item.
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