Multiattack

The knight attacks three times with their greatsword.

Greatsword

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage.

Lance (Mounted Only)

Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 9 (1d12 + 3) piercing damage. If the knight moves at least 20 feet straight towards the target before the attack they deal an extra 13 (2d12) piercing damage and the target makes a DC 14 Strength saving throw falling prone on a failure. This attack is made at disadvantage against targets within 5 feet.

Heavy Crossbow

Ranged Weapon Attack: +4 to hit, range 100/400 ft., one target. Hit: 6 (1d10 + 1) piercing damage plus 10 (3d6) poison damage.

Vile Curse (1/Day)

The knight utters hellish words that scald the soul. Living creatures of the knights choice within 30 feet that can hear and understand them are magically cursed for 1 minute. A d4 is subtracted from attack rolls and saving throws made by a cursed creature. A creature immune to the frightened condition is immune to this curse.