Cracked Talisman

Uncontrolled Banish

 * Lasts 20 seconds
 * Makes the player invulnerable, preventing all damage and effects including fall damage
 * Prevents the user from casting spells or attacking
 * Prevents the player from performing certain other actions such as gathering herbs
 * Does not prevent the player from mounting, or using their Hearthstone
 * Only usable in Jade Forest

Source
Dropped by Lorbu Sadsummon and Fixxul Lonelyheart, with a 100% drop rate. This item can be repeatedly acquired from these sources.