Sources
CR
Type
Size
Alignment
Movement

Gloine Nathair-Nathair

Medium Undead, Lawful Evil

Armor Class 15 (natural armor)
Hit Points 127 (17d8 + 51)
Speed 30 ft.
STR
10
+0
DEX
15
+2
CON
16
+3
INT
12
+1
WIS
13
+1
CHA
15
+2
Skills Deception +5, Insight +4, Perception +4, Stealth +5
Damage Immunities poison, necrotic
Condition Immunities Exhaustion, Poisoned
Senses darkvision 60 ft., passive Perception 14
Languages Common
Challenge 6 (2,300 XP)

Traits

Petrifying Gaze. When a creature that can see Gloine's eyes starts its turn within 30 feet of the medusa, the medusa can force it to make a DC 14 Constitution saving throw if the medusa isn't incapacitated and can see the creature. If the saving throw fails by 5 or more, the creature is instantly petrified. Otherwise, a creature that fails the save begins to turn to glass and is restrained. The restrained creature must repeat the saving throw at the end of its next turn, becoming petrified on a failure or ending the effect on a success. The petrification lasts until the creature is freed by the greater restoration spell or other magic.

Unless surprised, a creature can avert its eyes to avoid the saving throw at the start of its turn. If the creature does so, it can't see Gloine until the start of its next turn, when it can avert its eyes again. If the creature looks at the medusa in the meantime, it must immediately make the save.

If Gloine sees itself reflected on a polished surface within 30 feet of it and in an area of bright light, the medusa is, due to its curse, affected by its own gaze.

Actions

Multiattack. Gloine makes either three melee attacks—one with its snake hair and two with its shortsword—or two ranged attacks with its longbow.

Snake Hair. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit:4 (1d4 + 2) piercing damage plus 14 (4d6) poison damage.

Shortsword. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:5 (1d6 + 2) piercing damage.

Longbow. Ranged Weapon Attack: +5 to hit, range 150/600 ft., one target. Hit:6 (1d8 + 2) piercing damage plus 7 (2d6) poison damage.