Legendary Resistance (3/Day). If Muiral fails a saving throw, he can choose to succeed instead.

Spellcasting. Muiral is a 13th-level spellcaster. His spellcasting ability is Intelligence (spell save DC 17, +9 to hit with spell attacks). He has the following wizard spells prepared:

Cantrips (at will): dancing lights, mage hand, prestidigitation, ray of frost, shocking grasp

1st level (4 slots): expeditious retreat, fog cloud, magic missile, shield

2nd level (3 slots): darkness, knock, see invisibility, spider climb

3rd level (3 slots): animate dead, counterspell, lightning bolt

4th level (3 slots): greater invisibility, polymorph

5th level (2 slots): animate objects, wall of force

6th level (1 slot): create undead, flesh to stone

7th level (1 slot): finger of death

Multiattack. Muiral makes three attacks: two with his longsword and one with his sting.

Longsword. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit:13 (2d8 + 4) slashing damage, or 15 (2d10 + 4) slashing damage if used with two hands.

Sting. Melee Weapon Attack: +9 to hit, reach 10 ft., one creature. Hit:9 (1d10 + 4) piercing damage. The target must make a DC 16 Constitution saving throw, taking 27 (6d8) poison damage on a failed save, or half as much damage on a successful one.

Cast Cantrip. Muiral casts a cantrip.

Lunging Attack (Costs 2 Actions). Muiral makes one longsword attack that has a reach of 10 feet.

Retreating Strike (Costs 3 Actions). Muiral moves up to his speed without provoking opportunity attacks. Before the move, he can make one longsword attack.