Sphinx of Lore

No magic can observe the sphinx of lore remotely or detect its thoughts without its permission. Wisdom (Insight) checks made to ascertain its intentions or sincerity are made with Disadvantage.

3/day (4/day in lair). If the sphinx of lore fails a saving throw, it can choose to succeed instead.

The sphinx of lore makes three Claw attacks.

Melee Weapon Attack: +8 to hit, reach 5 ft.. Hit: 14 (3d6 + 4) slashing damage.

Recharge 5–6. Wisdom Saving Throw: DC 16, each enemy in a 300-foot Emanation originating from the sphinx of lore.
Failure: 35 (10d6) psychic damage, and the target has the Incapacitated condition until the start of the sphinx of lore's next turn.

1 use per day. The sphinx of lore casts one of the following spells, requiring no Material components and using Intelligence as the spellcasting ability (spell save DC 16):
At Will: Detect Magic, Identify, Mage Hand, Minor Illusion, Prestidigitation
1/Day Each: Dispel Magic, Legend Lore, Locate Object, Plane Shift, Remove Curse, Tongues

The sphinx of lore can teleport up to 30 feet to an unoccupied space it can see, and it makes one Claw attack.

Constitution Saving Throw: DC 16, one creature the sphinx of lore can see within 120 feet.
Failure: The target gains 1 Exhaustion level. While the target has any Exhaustion levels, it appears 3d10 years older.
Failure or Success: The sphinx of lore can't take this action again until the start of its next turn.