Aggie

Armor Class 17 (natural armor)

Hit Points 210 (20d20 + 100)

Speed 0 ft., Swim 60 ft.

STR

22 (+6)

DEX

10 (+0)

CON

20 (+5)

INT

12 (+1)

WIS

10 (+0)

CHA

6 (-2)

Saving Throws DEX +5, CON +10, WIS +5

Damage Immunities Poison

Condition Immunities

Senses 120 ft., Passive Perception 10

Languages understands Common and Aquan but can't speak

Challenge 14 (11,500 XP)

Proficiency Bonus +5

Traits

Undead Fortitude. If damage reduces Aggie to 0 hit points, she must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, Aggie drops to 1 hit point instead.

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

Frightful Presence. Each creature of Aggie's choice that is within 120 feet of her and aware of her must succeed on a DC 14 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to Aggie's Frightful Presence for the next 24 hours.

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

Actions

Bite. Melee Weapon Attack: +10 to hit, reach 15 ft., one target. Hit: 38 (4d12 + 6) piercing damage. If the target takes 32 or more piercing damage from this attack, it is grappled (escape DC 16). Until this grapple ends, the target is restrained, and Aggie can't bite another target.

Constrict. Aggie grapples a creature she has bitten. The target takes 22 (3d10 + 6) bludgeoning damage and is restrained until the grapple ends.

Cloudkill Breath (Recharge 5-6). Aggie exhales a cloud of toxic vapor in a 40-foot cone. Each creature in that area must make a DC 17 Constitution saving throw, taking 35 (10d6) poison damage on a failed save, or half as much damage on a successful one. The cloud lingers for 1 minute, spreading 10 feet each round from the point of origin. The area is heavily obscured and poses the same effects as the cloudkill spell.

Legendary Actions

Aggie can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature's turn. Aggie regains spent legendary actions at the start of her turn.