Ash

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

Spellcasting. Ash is an 18th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 17, +9 to hit with spell attacks). Ash can cast fireball at will and has the following spells prepared:

Cantrips (at will): fire bolt, light, mage hand, prestidigitation, shocking grasp

1st level (4 slots): detect magic, identify, burning hands

2nd level (3 slots): detect thoughts, mirror image, scorching ray

3rd level (3 slots): counterspell, fly, lightning bolt

4th level (3 slots): banishment, fire shield, stoneskin*

5th level (3 slots): cone of cold, scrying, wall of force

6th level (1 slot): investiture of flame

7th level (1 slot): teleport

8th level (1 slot): mind blank*

9th level (1 slot): time stop

*The archmage casts these spells on itself before combat.

Dranconic Presence. As an action, Ash can exude an aura of awe or fear to a distance of 60 feet. For 1 minute, each hostile creature that starts its turn in this aura must succeed on a Wisdom saving throw or be charmed or frightened until the aura ends. A creature that succeeds on this saving throw is immune to his aura for 24 hours.

Dagger. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage.

Fire Breath (1/day). Ash exhales fire in a 30-foot cone. Each creature in that area must make a DC 24 Dexterity saving throw, taking 71 (13d10) fire damage on a failed save, or half as much damage on a successful one.