Nift

Nift Leaves: When a party member rubs the leaves of the nift plant on the back of his or her neck. his or her flesh will be magically toughened against physical attacks. They gain +2 to AC for the next physical blow from the enemy. Unfortunately, nifts give no protection against magical attacks.
Property:  As an action, you can rub a nift leaf on your neck, you gain +2 to AC for the next melee or tanged attack that hits you.