Armor Class 17
Hit Points 306 (36d10 + 108)
Speed 40 ft., fly 40 ft.
Saving Throws STR +8, DEX +12, WIS +7
Skills Deception +12, Insight +7, Perception +7
Condition Immunities charmed, exhaustion, stunned
Senses truesight 60 ft., passive Perception 17
Languages Common, Elvish, Sylvan
Challenge 16
Legendary Resistance (3/Day). If Nintra fails a saving throw, she can choose to succeed instead.
Multiattack. Nintra makes two attacks.
Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 12 (2d4 + 7) piercing damage.
Shard of Shadow. Ranged Spell Attack: +12 to hit, range 120 ft., one target. Hit: 10 (1d6 + 7) necrotic damage, and if the target is a creature, it must succeed on a DC 20 Constitution saving throw or be poisoned until the end of its next turn.
Storm of Shattered Glass (Recharge 5–6). Nintra targets a point she can see within 60 feet of her and creates a 20-foot-radius sphere of swirling glass shards centered on that point. Each creature in the sphere must make a DC 20 Dexterity saving throw, taking 28 (8d6) slashing damage on a failed save, or half as much damage on a successful save. If Nintra is in the sphere, the shards deal no damage to her.
Attack. Nintra makes one attack.
Fey Step. Nintra teleports to an unoccupied space she can see within 30 feet of her.
Shadow Strikes (Costs 2 Actions). Provided she is in bright or dim light, Nintra causes her shadow to attack a creature within 10 feet of her. Her shadow makes two claw attacks, each attack identical to Nintra's claw attack except that it deals psychic damage instead of piercing damage.
CM, p. 197