Catalog
Effect
Held: Holder takes 1/8 (12.5%) its max HP at the end of each turn. When the holder is hit by a contact move, the attacking Pokémon takes 1/8 its max HP in damage and receive the item if not holding one.
In-game description
A hold item that damages the holder on every turn. It may latch on to foes that touch the holder.
4 species hold this item in the wild — you can get it by catching them or by using Thief.