Death Tyrant

Large undead, lawful evil
Armor Class 19 (natural armor)
Hit Points 187 (25d10 + 50)
Speed 0 ft., fly 20 ft. (hover)
STR
10 (+0)
DEX
14 (+2)
CON
14 (+2)
INT
19 (+4)
WIS
15 (+2)
CHA
19 (+4)
Saving Throws Str +5, Con +7, Int +9, Wis +7, Cha +9
Skills Perception +12
Damage Immunities poison
Condition Immunities charmed, exhaustion, paralyzed, petrified, poisoned, prone
Senses darkvision 120 ft., passive Perception 22
Languages Deep Speech, Undercommon
Challenge 14 (11500 XP)
Negative Energy Cone.
Actions
Bite.
Eye Rays.
Legendary actions
Eye Ray.

This full creature's stat block is not available (not OGL).

Monster Manual
Death Tyrant