Aeorian Nullifier

Large monstrosity, Neutral Evil

Armor Class

17 (natural armor)

Hit Points

180 (19d10+76)

Speed

walk 40 ft.

Saves

Wis +6, Cha +8

Skills

Perception +6, Survival +6

Damage Immunities

necrotic, radiant

Senses

darkvision 120 ft.

Languages

understands Draconic but can't speak

Challenge

12

Horrid Gnashing

The nullifier's mouths gnash incoherently while it can see any enemies. Each creature that starts its turn within 20 feet of the nullifier and can hear it must make a DC 16 Wisdom saving throw. Unless the save succeeds, the creature rolls a d8 to determine what it does during the current turn: 1-4: The creature is stunned until the end of the turn. 5-6: The creature is frightened until the end of the turn and uses its movement to get as far as possible from the nullifier. 7-8: The creature doesn't move, and it uses its action to make one melee attack against a random creature (other than itself) if one is within reach. It otherwise does nothing.

Magic Resistance

The nullifier has advantage on saving throws against spells and other magical effects.

Innate Spellcasting

The nullifier's innate spellcasting ability is Charisma (spell save DC 16). It can innately cast the following spells, requiring no material components: • At will: counterspell (see "Reactions" below), detect magic, dispel magic, see invisibility • 1/Day: antimagic field

Actions

Multiattack

The nullifier makes three attacks: one with its bites and two with its claws.

Bites

Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 17 (2d12 + 4) piercing damage plus 11 (2d10) force damage.

Claws

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) slashing damage plus 11 (2d10) force damage, and the target is grappled (escape DC 16) if it's a creature. The nullifier has two claws, each of which can grapple one creature.