Blood Warden of the Lake

Spear Mastery. The Blood Warden's mastery of the spear gives it one bonus action per attack rolls made with its spear. The damage dealt for the bonus action changes from 3d6 to 3d8. 

Frightful Presence. Each creature that is within 30 feet of the demon and aware of it must succeed on a DC 14 Wisdom saving throw or become frightened for 5 minutes. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the demon's Frightful Presence for the next 24 hours.

Bone Spear Thrust. The Warden lunges forward and thrusts its spear at the target. Melee Weapon Attack: +10 to hit, reach 15 ft., 1 target. Hit: 20 (3d6 + 8) piercing damage.

Disarming Strike. The Warden strikes the target using its spear with the intent to disarm. Melee Weapon Attack: +13 to hit, reach 15 ft., 1 target. Hit: 20 (3d6 + 8) slashing damage. The target must make a Dexterity saving throw of +15 to prevent themselves from being disarmed. If disarmed, the target drops their weapon (magical and/or melee) and remains disarmed until their next turn. 

Spear Sweep. The Warden sweeps at the targets' legs with its spear. Melee Weapon Attack: +12 to hit, reach 15 ft., 2 targets. Hit: 20 (3d6 + 8) slashing damage. Both targets must make a Strength saving throw of +15 to prevent themselves from getting knocked down. On a failed save, they are knocked prone until the next turn. 

Bloodletting Stab.  The Warden spears the target's body where its thickest veins are located (ex. jugular, wrists, etc.), with the intent of draining blood. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 8) piercing damage. On a hit, the target loses 7 (2d4 + 3) hit points for the next four turns due to blood loss.

Bone Spear Parry. Upon receiving damage from a melee attack, the Warden parries the attack with its bone spear. Melee Weapon Attack: +15 to hit, range 15 ft., 1 target. Hit: 20 (3d8 + 5) piercing damage. 

Puncturing Bite. If a target comes in close range of the Warden to avoid its spear, the Warden will resort to biting. His teeth, like countless needles, puncture the target's skin to draw blood. The Warden will only bite if the target is within 5 ft. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: (2d10 + 2) piercing damage. The target also loses 7 (2d4 + 3) hit points for the next four turns due to blood loss.