Ancient Vishap

Multiattack. The vishap makes two Claw attacks and one Bite attack.

Bite. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) Piercing damage.

Claw. Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 7 (1d4 + 5) Slashing damage. 

Spellcasting. The vishap casts one of the following spells using Intelligence as the spellcasting ability (spell save DC 14):

2/Day: Sleep

1/Day Each: Suggestion, Charm Monster

Nimble. The vishap can take the Disengage or Hide action on each of their turns.

Invisibility (1/Day). If a creature hits the vishap with an attack roll, the vishap casts Invisibility without spell components using Intelligence as their spellcasting ability.

The vishap 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. The vishap regains spent legendary actions at the start of their turn.

Detect. The vishap makes a Wisdom (Perception) check.

Claw Attack. The vishap makes a Claw attack.

Tail Sweep (Costs 2 Actions). The vishap swings their tail in a circle, forcing every creature within 15 feet of them to make a DC 17 Dexterity saving throw. On a failure,  a creature takes 10 (2d4 + 5) Bludgeoning damage and is dazed until the end of the vishap’s next turn. On a success, a creature takes half as much damage and is not dazed.

A dazed creature can only do one of the following things on their turn: move, use an action, or use a bonus action. If a creature becomes dazed during their turn, their turn ends.