Sticky Barb

An item to be held by a Pokémon. It damages the holder every turn and may latch on to Pokémon that touch the holder.

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.