The Ring Target
is a held item introduced in Generation V
. You can get it by talking to a girl inside Drayden
's house in Opelucid City
When a Pokémon holds this item, it will take damage from moves it is usually immune to. For example, a Normal-type Pokémon holding the Ring Target will now take damage from Ghost-type attacks.
Currently, common moves used in conjunction with this item are Trick, Switcheroo and Bestow; these moves switch held items between Pokémon, thus taking out your opponent's immunities.