Androsphinx

Large Monstrosity, Lawful Neutral

Armor Class 17 (natural armor)

Hit Points 199 (19d10 + 95)

Speed 40 ft., fly 60 ft.

STR

DEX

CON

INT

WIS

CHA

Saving Throws DEX +6, CON +11, INT +9, WIS +10

Skills Arcana +9, Perception +10, Religion +15

Damage Immunities psychic; bludgeoning, piercing, slashing, from nonmagical attacks

Condition Immunities Charmed, Frightened

Senses truesight 120 ft., passive Perception 20

Languages Common, Sphinx

Challenge 17 (18,000 XP)

Traits

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the sphinx's intentions or sincerity have disadvantage.

Magic Weapons. The sphinx's weapon attacks are magical.

Spellcasting

Spellcasting. The sphinx is a 12th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 18, +10 to hit with spell attacks). It requires no material components to cast its spells. The sphinx has the following cleric spells prepared:

Cantrips (at will): sacred flame, spare the dying, thaumaturgy

1st level (4 slots): command, detect evil and good, detect magic

2nd level (3 slots): lesser restoration, zone of truth

3rd level (3 slots): dispel magic, tongues

4th level (3 slots): banishment, freedom of movement

5th level (2 slots): flame strike, greater restoration

6th level (1 slot): heroes' feast

Actions

Multiattack. The sphinx makes two claw attacks.

Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit:17 (2d10 + 6) slashing damage.

Roar (3/Day). The sphinx emits a magical roar. Each time it roars before finishing a long rest, the roar is louder and the effect is different, as detailed below. Each creature within 500 feet of the sphinx and able to hear the roar must make a saving throw.

Each creature that fails a DC 18 Wisdom saving throw is frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Each creature that fails a DC 18 Wisdom saving throw is deafened and frightened for 1 minute. A frightened creature is paralyzed and can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Each creature makes a DC 18 Constitution saving throw. On a failed save, a creature takes 44 (8d10) thunder damage and is knocked prone. On a successful save, the creature takes half as much damage and isn't knocked prone.

Legendary Actions

Claw Attack. The sphinx makes one claw attack.

Teleport (Costs 2 Actions). The sphinx magically teleports, along with any equipment it is wearing or carrying, up to 120 feet to an unoccupied space it can see.

Cast a Spell (Costs 3 Actions). The sphinx casts a spell from its list of prepared spells, using a spell slot as normal.

Lore

In sacred isolation, a sphinx guards the secrets and treasures of the gods. As it calmly regards each new party that comes before it, the bones of supplicants and quest seekers that failed to pass its tests lie scattered around its lair. Its great wings sweep along its flanks, its tawny leonine body rippling with muscle and possessed of forepaws powerful enough to tear a humanoid in half.