Arkhon

Globe of Godly Light. This magic item is Arkhon's arcane focus and what connects him to the Empress of Blinding Light. If he is not holding it, he becomes frightened of all creatures hostile to him, looses his flying speed and magic resistance trait, cannot use his healing touch, blinding strike, or teleport actions, and cannot cast spells at will.

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

Sorcery Points. Arkhon has 18 sorcery points. It regains all its spent sorcery points when it finishes a long rest. It can spend its sorcery points on the following options:
Quickened Spell: When Arkhon casts a spell that has a casting time of 1 action, it can spend 2 sorcery points to change the casting time to 1 bonus action for this casting.
Twinned Spell: When Arkhon casts a spell that targets only one creature and doesn't have a range of self, it can spend a number of sorcery points equal to the spell's level to target a second creature in range with the same spell (1 sorcery point if the spell is a cantrip). To be eligible, a spell must be incapable of targeting more than one creature at the spell's current level. For example, magic missile and scorching ray aren't eligible, but ray of frost and chromatic orb are.
Empowered Spell: When Arkhon rolls damage for a spell, it can spend 1 sorcery point to reroll a number of the damage dice up to its Charisma modifier (minimum of one). It must use the new rolls. It can use Empowered Spell even if it has already used a different Metamagic option during the casting of the spell.
Subtle Spell: When Arkhon casts a spell, it can spend 1 sorcery point to cast the spell without any somatic or verbal components.

Spellcasting. Arkhon is an 18th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 18, +10 to hit with spell attacks). Arkhon can cast misty step and teleport at will and has the following sorcerer and cleric spells prepared:
Cantrips (at will): fire bolt, light, mage hand, gust, sacred flame, thaumaturgy
1st level (4 slots): catapult, command, guiding bolt, cure wounds, inflict wounds, shield of faith
2nd level (3 slots): detect thoughts, mirror image, misty step, blindness/deafness, spiritual weapon, hold person
3rd level (3 slots): counterspell, Fireball, Revivify, daylight
4th level (3 slots): banishment, wall of fire, 
5th level (3 slots): cone of cold, scrying, wall of light
6th level (1 slot): globe of invulnerability, sunbeam
7th level (1 slot): teleport
8th level (1 slot): sunburst
9th level (1 slot): true resurrection

Teleport. Arkhon magically teleports, along with any equipment it is wearing or carrying, up to 60 feet to an unoccupied space it can see.

Healing Touch (4/day). Arkhon touches another creature. The target magically regains  25(4d8 + 5) hit points and is freed from any curse, disease, poison, blindness, or deafness

Blinding Strike (1/day). Arkhon chooses a point on the ground it can see within 60 feet of it. A 30-foot-radius, 40-foot-high cylinder of bright light appears there until the start of the radiant idol's next turn. Each creature in the cylinder when it appears or that ends its turn there must make a DC 18 Constitution saving throw, taking 36 (8d8) radiant damage on a failed save, or half as much damage on a successful one.