Dad's Ring

Dad's Ring is an unlockable passive item added in The Binding of Isaac: Afterbirth †.

Effect

 * Creates a ring of light around Isaac that petrifies enemies on contact.
 * Normal enemies stay permanently petrified as long as they are within the ring, whereas bosses get a standard petrification effect that stays even outside the ring but isn't permanent.

Trivia

 * Dad's Ring has been added in Booster Pack, after the initial release of the DLC.
 * Dad's Ring doesn't work on the Mask enemy.