Batiri War Mask

This wooden mask is carved, painted and decorated into a fearsome visage.  It is used by the Batiri to intimidate their enemies, as well as to identify which tribe they are from.

Once per long rest, when an enemy makes to attack you, you may chose to don the mask (before it makes its attack roll) to impose disadvantage.  If the attack fails, the creature must then move as far away from you as possible until the end of its next turn, and may not attack you again on its next turn.  If moving away from you provoked an attack of opportunity, you may use your reaction to do this.