Innate Spellcasting. The arcanaloth’s innate spellcasting ability is Charisma (spell save DC 15). The arcanaloth can innately cast the following spells, requiring no material components:

• At will: alter self, darkness, heat metal, invisibility (self only)</i> , magic missile

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

Magic Weapons. The arcanaloth’s weapon attacks are magical.

Spellcasting. The arcanaloth is a 16th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 17, +9 to hit with spell attacks). The arcanaloth has the following wizard spells prepared:

• Cantrips (at will): fire bolt, mage hand, minor illusion, prestidigitation

• 1st level (4 slots): detect magic, identify, shield, Tenser’s floating disk

• 2nd level (3 slots): detect thoughts, mirror image, phantasmal force, suggestion

• 3rd level (3 slots): counterspell, fear, fireball

• 4th level (3 slots): banishment, dimension door

• 5th level (2 slots): contact other plane, hold monster

• 6th level (1 slot): chain lightning

• 7th level (1 slot): finger of death

• 8th level (1 slot): mind blank

Actions

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) slashing damage. The target must make a DC 14 Constitution saving throw, taking 10 (3d6) poison damage on a failed save, or half as much damage on a successful one.

Teleport. The arcanaloth magically teleports, along with any equipment it is wearing or carrying, up to 60 feet to an unoccupied space it can see.

Variant: Summon Yugoloth (1/Day). The yugoloth attempts a magical summoning.

An arcanaloth has a 40 percent chance of summoning one arcanaloth.

A summoned yugoloth appears in an unoccupied space within 60 feet of its summoner, does as it pleases, and can’t summon other yugoloths. The summoned yugoloth remains for 1 minute, until it or its summoner dies, or until its summoner takes a bonus action to dismiss it.

medium

fiend

cr12

monster-manual

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