b'Ketta \n'b'  Large   fiend  (shapechanger),  neutral evil  \n'b'  Armor Class  17 (natural armor)  Hit Points  136 (16d10 + 48)  Speed  40 ft., burrow 10 ft., swim 30 ft.\n'b' STATS STR: 21 (+5) DEX:  15 (+2)  CON:  16 (+3)  INT:  13 (+1)  WIS:  14 (+2)  CHA:  15 (+2)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Skills   Perception  +6,  Stealth  +6  Damage Immunities  poison; bludgeoning, piercing, and slashing from nonmagical attacks that aren\xe2\x80\x99t silvered  Condition Immunities   poisoned   Senses   darkvision  60 ft., passive  Perception  16  Languages  Common, Infernal  Challenge  10 (5,900 XP) \n'b' Special Traits \n'b'   Amphibious . The ketta can breathe air and water. \n'b'  Shapechanger . The ketta can use its action to  polymorph  into a cat-humanoid hybrid or into a Large cat, or back into its true form, which is humanoid. Its statistics, other than its  size , are the same in each form. Any equipment it is wearing or carrying isn\xe2\x80\x99t transformed. It reverts to its true form if it dies. \n'b'  Keen Hearing and Smell . The ketta has advantage on  Wisdom  ( Perception ) checks that rely on hearing or smell. \n'b'  Pounce (Cat Form Only) . If the ketta moves at least 15 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 17  Strength  saving throw or be knocked  prone . If the target is  prone , the ketta can make one rend attack against it as a bonus action. \n'b'  Actions \n'b'   Multiattack (Humanoid or Hybrid Form Only) . In humanoid form, the ketta makes two claw attacks. In hybrid form, it can  attack  twice with its claws and once with its bite. \n'b'  Bite (Cat or Hybrid Form Only) .  Melee Weapon Attack : +9 to hit, reach 5 ft., one target.  Hit : 10 (1d10 + 5) piercing damage. A humanoid slain by this  attack  rises 24 hours later as a grendel under the ketta\xe2\x80\x99s control, unless the humanoid is restored to life or its body is destroyed. The ketta can have no more than one Grendel under its control at one time. \n'b'  Claw .  Melee Weapon Attack : +9 to hit, reach 5 ft., one target.  Hit : 9 (1d8 + 5) slashing damage. \n'b'  Rend (Cat Form Only) .  Melee Weapon Attack : +9 to hit, reach 5 ft., one  prone  creature.  Hit : 23 (4d8 + 5) slashing damage. \n'b'  About \n'b' This enormous, hairless cat glares at you with glowing yellow eyes. \n'b' The ketta (she-cat) is considered the \xe2\x80\x9cmother\xe2\x80\x9d of haugbui in the sense that the creature can create such spawn by inhabiting mounds. \n'b'  Haugbui Kin . Haugbui are stirred to undead life by a ketta\xe2\x80\x99s presence. They are extraterrestrial demonic forces that animate corpses for their own dark purposes. Ketta have long claws and are even more formidable than haugbui. \n'b'  Vengeful Souls . Ketta are escaped souls from Helheim; they inhabit a cat which turns monstrous, transforming into something feral and vile that soon seeks solace in grave mounds. Ketta see haugbui they create as their children, and will not hesitate to enact revenge on those who slay their creations.'