Muiral

Large Monstrosity, Chaotic Evil

STR
19 (+4)
DEX
11 (+0)
CON
16 (+3)
INT
18 (+4)
WIS
13 (+1)
CHA
18 (+4)
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

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

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

Level 3 (3 slots): animate dead, counterspell, lightning bolt

Level 4 (3 slots): greater invisibility, polymorph

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

Level 6 (1 slots): create undead, flesh to stone

Level 7 (1 slots): finger of death

Actions

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.

Legendary Actions

Legendary Action Uses: 3. Immediately after another creature’s turn, this creature can expend a use to take one of the following actions; it regains all expended uses at the start of each of its turns.

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.

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Muiral

Source: Waterdeep: Dungeon of the Mad Mage, p. 314 - Licenses and attribution