Balar

Legendary Resistance (3/Day). If the Balar fails a saving throw, it can choose to succeed instead.

Magic Weapons. Balar's weapons attacks are magical.

Multiattack. The Balar can use its Frightful Presence. It then makes three attacks: two with its spear and one with its stomp.

Spear of Wounding. Melee or Ranged Weapon Attack: +10 to hit, reach 10 ft. or range 20/60 ft., one target. Hit: 13 (3d6 + 3) piercing damage, or 16 (3d8 + 3) piercing damage if used with two hands to make a melee attack. Any creature that you hit with this weapon can’t regain hit points for 1 minute. The target can make a DC 15 Constitution saving throw at the end of each of its turns, ending this effect early on a success.

Stomp. Melee Weapon Attack: +8 to hit, reach 10 ft., one prone creature. Hit: 22 (3d10 + 6) bludgeoning damage.

Frightful Presence. Each creature of the Balar's choice that is within 120 feet of the Balar and aware of it must succeed on a DC 18 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. These later saves have disadvantage if Balar is within line of sight of the creature.

If a creature's saving throw is successful or the effect ends for it, the creature is immune to the Balar's Frightful Presence for the next 24 hours.

Evil Eye (Recharge 5–6). The Balar uses one of the following action.

Evil Eye. If the target is a creature, it must succeed on a DC 18 Dexterity saving throw or take 45 (10d8) force damage. If this damage reduces the creature to 0 hit points, its body becomes a pile of fine gray dust.
If the target is a Large or smaller nonmagical object or creation of magical force, it is disintegrated without a saving throw. If the target is a Huge or larger object or creation of magical force, this ray disintegrates a 10-foot cube of it.

The Balar can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The Balar regains spent legendary actions at the start of its turn.

Spear Attack. The Balar makes a spear attack.

Drawing Breath. The Balar inhales with a great force in a 30-foot cone. Each creature in that area must succeed on a DC 18 Strength saving throw. On a failed save, the creature is pulled 15 feet closer to the Balar and knocked prone.

Balar's Blight (Cost 2 Actions). The Balar lets out a monstrous roar as greenish black energy ripples from its body. Each creature within 15 feet of the Balar must succeed on a DC 18 Constitution saving throw or be subjugated to the BLIGHT spell at 6th level.