The Cleanse Tag (Japanese: きよめのおふだ Purification Ofuda) is a type of held item introduced in Generation II. It decreases the wild Pokémon encounter rate if held by the player's Pokémon.
If held by any member in the player's party, it halves the encounter rate of wild Pokémon.
If held by the first member in the player's party, it decreases the encounter rate of wild Pokémon by one third. It also works if the holder has fainted.