Captain Julaug

A target that successfully saves is immune to this harpy's song for the next 24 hours.

Spellcasting. Captain Julaug is a 3rd-level spellcaster. His spellcasting ability is charisma (spell save DC 15, +6 to hit with spell attacks). Julaug has the following Ranger spells prepared:
1st level (4 slots): [Absorb Elements], [Zephyr Strike], [Longstrider]

2nd level (3 slots): [Lesser Restoration], [Protection from Poison] 

3rd level (3 slots): [Protection from Energy], [Elemental Weapon]

4th level (3 slots): [Stoneskin], [Guardian of Nature]

5th level (1 slot): [Steel Wind Strike]

 Legendary Resistances: When Julaug fails a saving throw, he can choose to succeed instead. Has 3 charges per day.

Attack. Julaug makes one attack with his club

Club. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 

39 (15d4 + 9) bludgeoning damage.

Opportunity attack when a creature leaves Julaug's combat range he can make one club attack against that creature. Consumes his only reaction which he gets back at the start of his turn.

Parry While Julaug is holding his club, he can add 2 to his AC against one attack, consumes is reaction which he gets back at the start of his turn

Julaug can take a total of 2 legendary actions, they recharge at the beginning of his turn

 Dash (Costs 1 Action). Julaug can fly up to 80 ft. and can run up to 40 ft.

Club (Costs 1 Action). Julaug makes a club attack

Cast Spell (Costs 1 Action). Julaug casts one spell