Apsepct of Levistus (Isle of Solace)

Innate Spellcasting. Levistus can innately cast misty step, requiring no components. His innate spellcasting ability is Charisma. He can cast Rime’s Binding Ice (4th Level - 5d8) 3 times per day. His DC is 15.

Cold Regeneration. If the temperature around him is 0 degrees Fahrenheit or lower, Levistus regains 10 hit points at the start of his turn. If he takes fire damage, this trait doesn’t function at the start of Levistus’s next turn. Levistus dies only if he starts his turn with 0 hit points and doesn’t regenerate.

Legendary Resistance (2/Day). If Levistus fails a saving throw, he can choose to succeed instead.

Frigid Aura. So long as Levistus has at least 1 hit point, each creature within 5 feet of him takes 1d10 cold damage when the creature enters the area for the first time on a turn or starts its turn there. If he takes fire damage, this trait doesn’t function at the start of Levistus’s next turn.

Icy Armor. Levistus surrounds himself in an icy breastplate. If he takes 30 points of fire damage before his next Cold Regeneration ability, the breastplate vanishes and his AC becomes 15.

Ice Walk. Levistus  can move across and climb icy surfaces without needing to make an ability check. Additionally, difficult terrain composed of ice or snow doesn't cost him extra movement.

Unusual Nature. Levistus doesn’t require air, food, drink, or sleep.

Multiattack. Levistus attacks twice with a weapon.

Ice Rapier. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 4) piercing damage, plus 7 (2d6) cold damage.

Ice Dagger. Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 7 (1d4 + 4) piercing damage plus 7 (2d6) cold damage.

Misty Step.

Dagger Attack. If Levistus attacks on his turn, Levistus makes one dagger attack with his offhand. He suffers no penalty to attacks or damage.

Parry. Levistus adds 3 to its AC against one melee attack that would hit it. To do so, Levistus must see the attacker and be wielding a melee weapon.

Levistus can take 2 legendary actions, choosing from the options below. Only one option can be used at a time and only at the end of another creature’s turn. Levistus regains spent legendary actions at the start of his turn.

Misty Step. Levistus misty steps up to 30 feet.

Ice Rapier. Levistus makes one attack with his sword.

RIme's Binding Ice (2 Actions) Levistus casts Rime's Binding Ice.