Bane of Knights

Tactical Indiscipline. The bane of knights has advantage on the first ability check and saving throw it makes each turn during combat.

Multiattack. The bane of knights makes two attacks with its war pick or longbow.

War pick. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. If the target is wearing a breastplate, half plate or plate, this attack is critical hit on a roll of 19 or 20. Hit: 8 (1d8 + 3) bludgeoning damage. 

Longbow. Ranged Weapon Attack: +2 to hit, range 150/600 ft., one target. Hit: 4 (1d8) piercing damage.

Counter Attack. As a reaction when the bane of knights is hit or missed with a weapon attack within 10 feet of themselves, they can make an attack with its war pick.