Armor Class
13
(natural armor)
Hit Points
68
(8d10 + 24)
Speed
60 ft., fly 90 ft.
STR
18
(+4)
DEX
15
(+2)
CON
16
(+3)
INT
10
(+0)
WIS
13
(+1)
CHA
15
(+2)
Damage Immunities
Fire
Senses
Passive Perception 11
Languages
Common and Infernal but can't speak
Challenge
3 (700 XP)
Proficiency Bonus
+2
Traits
Confer Fire Resistance. The nightmare can grant resistance to fire damage to anyone riding it.
Illumination. The nightmare sheds bright light in a 10-foot radius and dim light for an additional 10 feet.
Actions
Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage plus 7 (2d6) fire damage.
Ethereal Stride. The nightmare and up to three willing creatures within 5 feet of it magically enter the Ethereal Plane from the Material Plane, or vice versa.
Definitely, I plan my Illrigger to have one.