Archon Ashen Rider - Stat Block

Mystic Odysseys of Theros

Ashen Rider CR: 16

Medium celestial, lawful evil

Armor Class: 18 (Plate Armor)

Hit Points: 178 (21d8 + 84)

Speed: 30 ft

STR

20 +5

DEX

16 +3

CON

19 +4

INT

15 +2

WIS

21 +5

CHA

18 +4

Saving Throws: Str +10, Con +9, Wis +10, Cha +9

Skills: History +7, Insight +10, Perception +10

Damage Immunities: thunder

Condition Immunities: charmed, exhaustion, frightened

Senses: truesight 120 ft., passive Perception 20

Languages: all

Challenge Rating: 16 ( 15000 XP)

Proficiency Bonus: 5

Spellcasting. The ashen rider's spellcasting ability is Wisdom (spell save DC 18). The rider can innately cast the following spells, requiring no material components:

At will: Command, Compelled Duel

1/day: Banishment, Blade Barrier

Aura of Silence. When a creature starts its turn within 30 feet of the ashen rider, the rider can force that creature to make a DC 18 Wisdom saving throw if the rider can see it. On a successful save, the creature is immune to this aura for the next 24 hours. On a failed save, the creature can't speak and is deafened until the start of its next turn.
Mount. If the ashen rider isn't mounted, it can use a bonus action to magically teleport onto the creature serving as its mount, provided the ashen rider and its mount are on the same plane of existence. When it teleports, the ashen rider appears astride the mount along with any equipment it is wearing or carrying.
While mounted and not incapacitated, the ashen rider can't be surprised, and both it and its mount have advantage on Dexterity saving throws. If the ashen rider is reduced to 0 hit points while riding its mount, the mount is reduced to 0 hit points as well.

Actions

Multiattack. The ashen rider makes three attacks with its ashen blade or two attacks with its bolt of ash.
Ashen Blade. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 14 (2d8 + 5) slashing damage plus 13 (2d12) radiant damage.
Bolt of Ash. Ranged Spell Attack: +10 to hit, range 120 ft., one creature. Hit: 22 (4d10) necrotic damage, and the target can't regain hit points until the start of the ashen rider's next turn.

Legendary Actions

The ashen rider 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. The ashen rider regains spent legendary actions at the start of its turn.
Attack. The ashen rider makes an attack using its ashen blade or bolt of ash.
Coordinated Assault (Costs 2 Actions). The ashen rider makes an attack using its ashen blade or bolt of ash, and then its mount can use its reaction to make a melee weapon attack.
Reduce to Ash (Costs 3 Actions). The ashen rider targets a creature it can see within 60 feet of it. The target must succeed on a DC 18 Constitution saving throw, or it takes 27 (5d10) necrotic damage and its hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest. If the target's hit point maximum is reduced to 0, its body and everything it is wearing and carrying, except for magic items, are reduced to ash. A creature reduced to ash can't be revived by any means short of a Wish spell.

The fall of the ancient archon empires left some archons bitter and resentful. Seeking to avoid the spread of human civilization, these archons made their way to the Underworld. The horrors of the place broke their minds, bodies, and spirits and twisted them into the terrifying archons known as ashen riders. When they ride forth upon the mortal world, terrified mortals make offerings in a desperate attempt to appease them, but the ashen riders aren't merciful, and they delight in reducing the paragons of the mortal world to ash.
The mysterious conquerors known as archons once ruled vast empires. These armored warlords saw themselves as champions of merciless justice, and they ruled with iron fists. But their dominance ultimately came to an end. As the archon overlords toppled, they scattered to the fringes of the world, and their holdings developed into the poleis of today.
Even though the age of archons is long past, many wonder if the few surviving archons might someday attempt to reestablish their empire or if they are truly resigned to their lesser role in the world.