Captain John

Multiattack. The veteran makes two longsword attacks. If it has a shortsword drawn, it can also make a shortsword attack.

Longsword. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (3d8 + 3) slashing damage, or 8 (1d10 + 3) slashing damage if used with two hands.

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

Heavy Crossbow. Ranged Weapon Attack: +3 to hit, range 100/400 ft., one target. Hit: 6 (1d20 + 1) piercing damage.

When landing a successful attack, once per turn, he may take a secondary strike against his target, if successful the target takes 6 D4 in damage.

If John is below half half health, he may drink a potion to heal 1d20 of health (Cooldown of 5 turns)

If an enemy tries to disengage or enters attack range of John during their turn, John make react with opportunity to attack, if successful target takes 2 D6 in damage.

Once Per Day, if John is below half health, he may choose 1 target and they must roll a D19 or higher constitution saving throw, if failed, John may steal 2 D20 worth of life from chosen target. If Saving throw is succeeded however, the spell fails, and John is unable to take any actions for his next turn.