b'Grendel \n'b'  Large   fiend ,  chaotic evil  \n'b'  Armor Class  19 (natural armor)  Hit Points  147 (14d10 + 48)  Speed  30 ft.\n'b' STATS STR: 21 (+5) DEX:  15 (+2)  CON:  20 (+5)  INT:  8 (-1)  WIS:  14 (+2)  CHA:  8 (-1)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Saving Throws   Strength  +9,  Constitution  +9  Skills   Perception  +6,  Stealth  +6  Damage Vulnerabilities  thunder  Damage Immunities  bludgeoning, piercing, and slashing from nonmagical attacks  Condition Immunities   poisoned   Senses   darkvision  60 ft., passive  Perception  16  Languages  Common, Infernal  Challenge  12 (8,400 XP) \n'b' Special Traits \n'b'   Ambusher . In the first round of a combat, the grendel has advantage on attack rolls against any creature it surprised. \n'b'  Bloodthirsty Frenzy . The grendel has advantage on attack rolls against  frightened  creatures. \n'b'  Horrific Appearance . Any humanoid that starts its turn within 30 feet of the grendel and can see it form must make a DC 14  Wisdom  saving throw. On a failed save, the creature is  frightened  for 1 minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if the grendel is within line of sight, ending the effect on itself on a success. If a creature\xe2\x80\x99s saving throw is successful or the effect ends for it, the creature is immune to the grendel\xe2\x80\x99s Horrific Appearance for the next 24 hours. Unless the target is surprised, the target can avert its eyes and avoid making the initial saving throw. Until the start of its next turn, a creature that averts its eyes has disadvantage on attack rolls against the grendel. \n'b'  Shadow Stealth . While in dim light or darkness, the grendel can take the  Hide  action as a bonus action. \n'b'  Actions \n'b'   Multiattack . The grendel makes three attacks: one with its bite and two with its claws. \n'b'  Bite .  Melee Weapon Attack : +9 to hit, reach 5 ft., one target.  Hit : 18 (2d12 + 5) piercing damage. \n'b'  Claws .  Melee Weapon Attack : +9 to hit, reach 10 ft., one target.  Hit : 14 (2d8 + 5) slashing damage. If the target is a creature, the target is  grappled  (escape DC 17). The grendel has two claws. While a claw grapples a target, the claw can attack only that target. When the grendel moves, any Medium or smaller target it is grappling moves with it. \n'b'  Swallow . The grendel makes one bite attack against a Medium or smaller target it is grappling. If the  attack  hits, the target is swallowed, and the grapple ends. The swallowed target is  blinded  and  restrained , it has total  cover  against attacks and other effects outside the grendel, and it takes 10 (3d6) acid damage at the start of each of the grendel\xe2\x80\x99s turns. The grendel can have only one target swallowed at a time. If the grendel dies, a swallowed creature is no longer  restrained  by it and can escape from the corpse using 5 feet of movement, exiting  prone . \n'b'  Reactions \n'b'   Bloody Rampage . When the grendel takes damage, it makes one  attack  with its claws against a random creature within its reach. \n'b'  About \n'b' This horrific, hulking beast is only barely humanoid, with large claws, warty skin, and a terrifying visage. \n'b' A whirlwind of teeth and claws, grendels are spawned by ketta and used by them to exact revenge upon all that is good. As fiends, they have an innate hatred of song and revelry; the grendel particularly so. It strikes in the dead of night, murdering as many humanoids as it can, greedily gulping down those it can eat quickly and carrying off any others for devouring later. These victims are shared with the ketta that spawned it, and in this regard the grendel regards the ketta as its \xe2\x80\x9cmother.\xe2\x80\x9d'