Cloak of Displacement

The first potentially successful melee strike directed at the wearer has a 50% chance to miss. The first time the DM succeeds on an attack that would normally hit the wearer, the DM will roll a d20. If the result is 11-20, the attack fails. This item only works once per combat and only during the first potential melee strike aimed at the wearer, regardless of whether the 50/50 roll succeeded or failed.