Balor

Huge fiend · CR 19

Armor Class 19

Hit Points 262 (21d12+126)

Speed fly 80 ft., 40 ft.

STR 26 +8

DEX 15 +2

CON 22 +6

INT 20 +5

WIS 16 +3

CHA 22 +6

Saving Throws CHA+12, CON+12, STR+14, WIS+9

Damage Resistances cold, lightning; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities fire, poison

Condition Immunities poisoned

Senses truesight120 ft. , passive Perception 13

Languages Abyssal, telepathy 120 ft.

Traits

Death Throes.: When the balor dies, it explodes, and each creature within 30 feet of it must make a DC 20 Dexterity saving throw, taking 70 (20d6) fire damage on a failed save, or half as much damage on a successful one. The explosion ignites flammable objects in that area that aren't being worn or carried, and it destroys the balor's weapons.
Fire Aura.: At the start of each of the balor's turns, each creature within 5 feet of it takes 10 (3d6) fire damage, and flammable objects in the aura that aren't being worn or carried ignite. A creature that touches the balor or hits it with a melee attack while within 5 feet of it takes 10 (3d6) fire damage.
Magic Resistance.: The balor has advantage on saving throws against spells and other magical effects.
Magic Weapons.: The balor's weapon attacks are magical.

Multiattack.: The balor makes two attacks: one with its longsword and one with its whip.
Longsword. Melee/Ranged Weapon Attack: +14 to hit.: Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 21 (3d8 + 8) slashing damage plus 13 (3d8) lightning damage. If the balor scores a critical hit, it rolls damage dice three times, instead of twice.
Whip. Melee/Ranged Weapon Attack: +14 to hit.: Melee Weapon Attack: +14 to hit, reach 30 ft., one target. Hit: 15 (2d6 + 8) slashing damage plus 10 (3d6) fire damage, and the target must succeed on a DC 20 Strength saving throw or be pulled up to 25 feet toward the balor.
Teleport.: The balor magically teleports, along with any equipment it is wearing or carrying, up to 120 feet to an unoccupied space it can see.
Variant: Summon Demon (1/Day).: The demon chooses what to summon and attempts a magical summoning. A balor has a 50 percent chance of summoning 1d8 vrocks, 1d6 hezrous, 1d4 glabrezus, 1d3 nalfeshnees, 1d2 mariliths, or one goristro. A summoned demon appears in an unoccupied space within 60 feet of its summoner, acts as an ally of its summoner, and can't summon other demons. It remains for 1 minute, until it or its summoner dies, or until its summoner dismisses it as an action.