Calypso - Spawn of Glasya

Hellish Weapons. Calypso can summon weapons she is familiar with and attack with them. Use the weapons traditional base damage, but add 1d12 poison damage to every weapon attack.

Magic Resistance. Calypso has advantage on saving throws against spells and other magical effects.

Spell Caster: Calypso is a 4th-level spellcaster. Its spellcasting ability is [Charisma] (spell save DC 14, +4 to hit with spell attacks). Calypso has the following Sorcerer spells prepared:

• At will: Charm Person , Ray of Sickness
• 3/day: Charm Monster, Darkness, Counterspell
• 1/day: Wall of Fire

Legendary Resistance (1/day). If Calypso fails a saving throw, she can choose to succeed instead.

Multiattack. Calypso makes three attacks from the following list. You may either do 1 of each, or 2 glaive attacks and one of the others.

• Glaive (+1). Calypso summons and attacks with the weapon she used in her previous life. Melee Weapon Attack:  +8 to hit, reach 10 ft., 1 target. Hit: 8 (1d10 + 4) [piercing] damage and 7 (1d12) [poison] damage. 
• Tail Strike. A scorpion-like tail reaches out and pierces your target. Melee Weapon Attack: +6 to hit, reach 10 ft., 1 target. Hit: 5 (1d4 + 4) [piercing] damage and 10 (2d8) [poison] damage. On hit, the target will also have to save on a DC 15 Saving throw or fall under the Poisoned condition.
• Wicked Mockery: If a target within 30 feet can hear her (though it need not understand her), it must succeed on a DC 15 Wisdom saving throw or take 8 (3d4) psychic damage and become frightened by Calypso. Frightened creatures must immediately use their reaction, if available, to move as far as its speed allows away from her. Creatures don't move into obviously dangerous ground, such as a fire or a pit. A creature frightened this way must make a DC 15 Wisdom Saving throw at the end of each of its turns or remain frightened of Calypso. Once it succeeds on the saving throw, a creature is immune to all effects of Calypso's Wicked Mockery.

Glare. Calypso glares at a creature within 30 feet who is charmed or frightened by her, and it must make a DC15 Wisdom saving throw. On a failed save, the creature falls unconscious until Calypso chooses, or the sleeper takes damage, or someone uses an action to awaken the sleeper. Undead, and creatures immune to being magically put to sleep aren't affected. This version of unconscious does not drop the user to 0 HP.

Summon Imp (2/day): You can summon an imp to assist you in combat. 

Teleport: Teleport 15 feet away. 

Parry. Calypso adds 4 to her AC against one melee attack that would hit it. To do so, she must see the attacker and be wielding a melee weapon.

Calypso can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. Calypso regains spent legendary actions at the start of its turn.

Attack. Calypso makes an regular weapon attack with her glaive. 

Manipulate.  An allied fiend, or a creature charmed by Calypso uses its reaction to move as far as its speed allows, and make one attack against a target of Calypso's choice that she can see.

Scorn.  Calypso uses Wicked Mockery, or Glare.

Cast Spell. Cast a spell from your list above