Crimson Hunter

Blood Curse of Binding (1/Day). As a bonus action, the crimson hunter targets one creature it can see within 30 feet of it. The target must succeed on a DC 14 Strength saving throw or have its speed reduced to 0 and be unable to take reactions. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Blood Frenzy. The crimson hunter has advantage on melee attack rolls against any creature that doesn’t have all its hit points.

Innate Spellcasting (1/Day). The crimson hunter can innately cast hex, false life and vampiric touch. Its innate spellcasting ability is Intelligence.

Magic Resistance. The crimson hunter has advantage on saving throws against spells and other magical effects.

Multiattack. The crimson hunter attacks twice with a weapon.

Greatsword. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage plus 3 (1d6) fire damage.

Heavy Crossbow. Ranged Weapon Attack: +4 to hit, range 100/400 ft., one target. Hit: 6 (1d10 + 1) piercing damage.

Vampiric Touch. Melee Spell Attack: +7 to hit, reach 5 ft, one target. Hit: 12 (3d6) necrotic damage. On a hit, the crimson hunter regain hit points equal to half the amount of necrotic damage dealt. Until the spell ends, you can make the attack again on each of your turns as an action.

Blood Vigor. Once a day, the crimson hunter can gather the nearby droplets and pools of blood within a 15 ft circle, centered on themselves, and magically heal themselves for 1d6 per wounded creature (includes themselves). However once used, it does remove the remaining blood from the ground for additional uses. 

Parry. The crimson hunter adds 3 to its AC against one melee attack roll that would hit it. To do so, the crimson hunter must see the attacker and be wielding a melee weapon.