Sources
CR
Type
Size
Alignment
Movement

Hellcat (Bezekira)

Large Fiend, Neutral Evil

Armor Class 16 (natural armor)
Hit Points 136 (16d10 + 48)
Speed 40 ft.
STR
21
+5
DEX
19
+4
CON
17
+3
INT
10
+0
WIS
14
+2
CHA
10
+0
Saving Throws DEX +8, CON +7
Skills Acrobatics +8, Athletics +9, Perception +6, Stealth +12
Damage Resistances bludgeoning, piercing, slashing, from nonmagical attacks that aren't silvered; damage from spells
Damage Immunities fire
Senses blindsight 30 ft., darkvision 60 ft., passive Perception 16
Languages understands Infernal, telepathy 120 ft.
Challenge 10 (5,900 XP)

Traits

Darkness Dweller. Attacks made against a bezekira in bright or dim light have disadvantage.

Devil's Sight. Magical darkness doesn't impede the bezekira's darkvision.

Actions

Multiattack. The bezekira makes three Claw attacks. It can replace one of the attacks with a Bite attack.

Claw. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit:15 (3d6 + 5) slashing damage plus 7 (2d6) fire damage. The bezekira deals an extra 28 (8d6) fire damage when it hits a target with an attack and has advantage on the attack roll.

Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit:16 (2d10 + 5) bludgeoning damage, grasping the target with its mouth. If the target is a Medium or smaller creature, it has the grappled condition (escape DC 17). The bezekira can't make a Bite attack while a creature is grappled in this way.

Lore

Possessing a unique ability to detect both the alignment and strength of an individual telepathically, bezekiras, otherwise known as hellcats, search for the most powerful master of lawful evil alignment. Once they've found a master, they're extremely loyal and follow all commands, until a stronger master comes along. When not serving a master, hellcats are fiercely independent, secretive, and intelligent.