Sources
CR
Type
Size
Alignment
Movement

Jalynvyr Nir'Thinn

Small Elemental, Neutral Evil

Armor Class 12
Hit Points 22 (5d6 + 5)
Speed 30 ft., fly 30 ft.
STR
6
-2
DEX
14
+2
CON
12
+1
INT
10
+0
WIS
10
+0
CHA
11
+0
Skills Perception +2, Stealth +4
Damage Immunities fire, poison
Condition Immunities Poisoned
Senses darkvision 60 ft., passive Perception 12
Languages Common, Elvish
Challenge 1/4 (50 XP)

Traits

Death Burst. When Jalynvyr Nir'Thinn dies, it leaves behind a cloud of smoke that fills a 5-foot-radius sphere centered on its space. The sphere is heavily obscured. Wind disperses the cloud, which otherwise lasts for 1 minute.

Spellcasting

Innate Spellcasting (1/Day). Jalynvyr Nir'Thinn can innately cast dancing lights, requiring no material components. Its innate spellcasting ability is Charisma.

Actions

Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit:4 (1d4 + 2) slashing damage.

Cinder Breath (Recharge). Jalynvyr Nir'Thinn exhales a 15-foot cone of smoldering ash. Each creature in that area must succeed on a DC 10 Dexterity saving throw or be blinded until the end of the mephit's next turn.