Arkavis

Heated Body. Touching or hitting the creature while within 5 ft. of it causes damage.

Frightful Presence. Each creature of the creature's choice within range must make a Wisdom saving throw or be frightened for 1 minute.

Parry. The creature adds its proficiency bonus to its AC against one melee attack that would hit it as a reaction.

Eternal Presence. Creature can not permanently die, only knocked unconscious for 2d4 weeks

Multi Attack. The Arkavis makes 2 Greatsword attacks

Greatsword: Melee Weapon Attack: +15 to hit, reach 5 ft., one target. Hit: 22 (4d6 + 8) slashing damage plus 27 (6d8) Fire damage.

Flying Sword: The Arkavis Conjures 2 Greatswords to hover magically in an unoccupied space within 5 ft. of it. If the Arkavis can see the swords, the Arkavis can mentally Command them as a Bonus Action to fly up to 50 ft. and either make one Attack each against a target. If the hovering swords is targeted by any Effect, the Arkavis is considered to be holding it. The hovering sword falls if the Arkavis dies.

Teleport: The Arkavis magically teleports, along with any Equipment it is wearing or carrying, up to 120 ft. to an unoccupied space it can see.

Searing Burst (Costs 2 Actions): The solar emits magical, divine energy. Each creature of its choice in a 10 -foot radius must make a DC 23 Dexterity saving throw, taking 14 (4d6) fire damage plus 14 (4d6) radiant damage on a failed save, or half as much damage on a successful one.

Wrath of Ages (Once per day): The Arkavis speaks in a language everything can understand for one sentence, then launches a sphere of concentrated radiant fire at an area. Each creature in a 120-foot radius of the blast must make a DC 23 CON save or take 10d20 fire damage and 10d20 radiant damage and be knocked prone on a failed save, half as much damage on a success. Failing this save by 9 or more will instantly incinerate the target.