Alhoon

Medium undead, any evil alignment

Armor Class 15 (natural armor)

Hit Points 120 (16d8+48)

Speed 30 ft.

Saving Throws Con +7, Int +8, Wis +7, Cha +7

Skills Arcana +8, Deception +7, History +8, Insight +7, Perception +7, Stealth +5

Damage Resistances cold, lightning, necrotic

Damage Immunities poison; bludgeoning, piercing, and slashing from nonmagical attacks

Condition Immunities charmed, exhaustion, frightened, paralyzed, poisoned

Senses truesight 120 ft.

Languages Deep Speech, Undercommon, telepathy 120 ft.

Challenge 10 (5,900 XP)

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

Innate Spellcasting (Psionics). The alhoon’s innate spellcasting ability is Intelligence (spell save DC 16). It can innately cast the following spells, requiring no components:

At will: detect thoughts, levitate

1/day each: dominate monster, plane shift (self only)

Spellcasting. The alhoon is a 12th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 16, +8 to hit with spell attacks). The alhoon has the following wizard spells prepared:

Cantrips (at will): chill touch, dancing lights, mage hand, prestidigitation, shocking grasp

1st level (4 slots): detect magic, disguise self, magic missile, shield

2nd level (3 slots): invisibility, mirror image, scorching ray

3rd level (3 slots): counterspell, fly, lightning bolt

4th level (3 slots): confusion, Evard’s black tentacles, phantasmal killer

5th level (2 slots): modify memory, wall of force

6th level (1 slot): disintegrate, globe of invulnerability

Turn Resistance. The alhoon has advantage on saving throws against any effect that turns undead.

Actions

Chilling Grasp. Melee Spell Attack: +8 to hit, reach 5 ft., one target. Hit: 10 (3d6) cold damage.

Mind Blast (Recharge 5-6). The alhoon magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 16 Intelligence saving throw or take 22 (4d8+4) psychic damage and be stunned for 1 minute. A target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.