Dark Devotion. The monk has advantage on saving throws against being charmed or frightened.
Hooked Polearm. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:4 (1d6 + 1) piercing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 10). Until this grapple ends, the monk cannot use its polearm on another target.