Light Devourer

Medium aberration, Unaligned

Armor Class

14

Hit Points

119 (14d8 + 56)

Speed

walk 0 ft., swim 30 ft.

Skills

Perception +3, Stealth +10

Damage Immunities

radiant

Senses

darkvision 120 ft.

Languages

Challenge

6

Proficiency Bonus

+3

Light Absorption

If the light devourer spends any part of its turn in an area of bright light or is subjected to radiant damage, it radiates dim light in a 10-foot radius for 1 hour.

Water Breathing

The light devourer can breathe only underwater.

Actions

Multiattack

The light devourer makes two Bite attacks.

Bite

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 21 (5d6 + 4) piercing damage, or radiant damage if the light devourer is radiating light (see Light Absorption).

Radiant Discharge (Bonus Action)

If the light devourer is radiating light (see Light Absorption), it releases the light stored in its body in a 20-foot-radius sphere centered on itself, then ceases to radiate light. Each creature in the sphere must make a DC 15 Constitution saving throw, taking 24 (7d6) radiant damage on a failed saving throw, or half as much damage on a successful one.