Sources
CR
Type
Size
Alignment
Movement

Koh Tam

Medium Humanoid, Lawful Neutral

Armor Class 17 (breastplate, shield)
Hit Points 143 (22d8 + 44)
Speed 30 ft.
STR
16
+3
DEX
12
+1
CON
15
+2
INT
19
+4
WIS
20
+5
CHA
15
+2
Saving Throws WIS +9, CHA +6
Skills Arcana +8, History +8, Insight +9, Religion +8
Senses darkvision 120 ft., passive Perception 15
Languages Abyssal, Celestial, Common, Infernal
Challenge 10 (5,900 XP)

Spellcasting

Spellcasting. Koh Tam casts one of the following spells, using Wisdom as the spellcasting ability (spell save DC 17):

At will: False Life, Gentle Repose, Lesser Restoration, Protection from Evil and Good, Speak with Dead

1/day each: Antilife Shell, Blight, Death Ward, Dispel Evil and Good, Greater Restoration, Raise Dead, Regenerate, Revivify, Spiritual Weapon

Actions

Arbiter's Touch. Melee Spell Attack: +9 to hit, reach 5 ft., one target. Hit:12 (2d6 + 5) radiant damage.

Judgement. Koh Tam judges a creature within 60 feet of him. The target must succeed on a DC 17 Wisdom saving throw or take 50 (10d8 + 5) radiant damage. If the target had fewer hit points than their maximum prior to this attack, the creature takes 70 (10d12 + 5) radiant damage instead.

Arbiter's Light (Recharge 4–6). Ranged Spell Attack: +9 to hit, range 120 ft., one target. Hit:70 (10d12 + 5) radiant damage, and the target has the blinded condition until the start of Koh Tam's next turn.

Lore

Koh Tam is the powerful head priest of Kelemvor, god of death and the dead, at the Waterdeep cathedral. Seeking to know all the secrets of the realms of the dead, Koh Tam petitioned his god for permission to explore the Nine Hells. The young priest set forth into the infernal realm where he bore witness to horrors beyond mortal imagination and encountered fiendish creatures whose power greatly outmatched his own. The experience forever changed the priest. Rather than sate his curiosity, the…