Nightmare

Large Fiend, Neutral Evil

AC 13 Initiative +2 (12) HP 68 (8d10 + 24) Speed 60 ft., Fly 90 ft. (hover)

STR 18 +4 +4

DEX 15 +2 +2

CON 16 +3 +3

INT 10 +0 +0

WIS 13 +1 +1

CHA 15 +2 +2

Immunities

Fire

Senses

Passive Perception 11

Languages

Understands Abyssal, Common, and Infernal but can't speak

CR

3 (XP 700; PB +2)

Traits

Confer Fire Resistance. The nightmare can grant Resistance to Fire damage to a rider while it is on the nightmare.

Illumination. The nightmare sheds Bright Light in a 10-foot radius and Dim Light for an additional 10 feet.

Actions

Hooves. Melee Attack Roll: +6, reach 5 ft. Hit: 13 (2d8 + 4) Bludgeoning damage plus 10 (3d6) Fire damage.

Ethereal Stride. The nightmare and up to three willing creatures within 5 feet of it teleport to the Ethereal Plane from the Material Plane or vice versa.