b'Nightcrawler \n'b'  Gargantuan   undead ,  chaotic evil  \n'b'  Armor Class  19 (natural armor)  Hit Points  188 (13d20 + 52)  Speed  30 ft., burrow 30 ft.\n'b' STATS STR: 18 (+4) DEX:  14 (+2)  CON:  18 (+4)  INT:  24 (+7)  WIS:  15 (+2)  CHA:  20 (+5)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Saving Throws   Dexterity  +8,  Constitution  +10,  Wisdom  +8,  Charisma  +11  Skills   Arcana  +13,  Athletics  +10,  Insight  +8,  Nature  +13,  Religion  +13  Damage Immunities  cold, necrotic, poison; bludgeoning, piercing, and slashing from nonmagical weapons  Condition Immunities   charmed ,  exhaustion ,  frightened ,  paralyzed ,  poisoned   Senses   darkvision  120 ft., tremorsense 120 ft., passive  Perception  12  Languages  Abyssal, Common, Infernal; telepathy 100 ft.  Challenge  18 (20,000 XP) \n'b' Special Traits \n'b'   Desecrating Aura . Undead within 30 feet of the nightcrawler, including the nightcrawler itself, have advantage on saving throws against turn undead. \n'b'  Innate Spellcasting . The nightcrawler\xe2\x80\x99s innate spellcasting ability is  Charisma  (spell save DC19, +11 to hit with spell attacks). It can cast the following spells without components:\n'b'\n'b'   At will :  detect magic ,  levitate  \n'b'  3/day each :  cone of cold ,  confusion ,  hold monster  \n'b'  1/day each :  finger of death ,  plane shift  \n'b'\n'b'  Light Aversion . If a nightcrawler begins its turn in an area of bright light, it must make a DC18  Constitution  saving throw or be  poisoned  until the start of its next turn. It makes the saving throw with disadvantage if it is in an area of bright light that counts as sunlight. \n'b'  Actions \n'b'   Multiattack . The nightcrawler can make one  attack  with its Bite and one  attack  with its Sting. \n'b'  Bite .  Melee Weapon Attack : +10 to hit, reach 15ft., one creature.  Hit : 17 (3d8 + 4) piercing damage, and the target must make a DC19  Dexterity  saving throw or be  grappled  (escape DC19). If the target is a Large or smaller creature and is  grappled  by the nightcrawler\xe2\x80\x99s pincers, that creature is swallowed, and the grapple ends. While swallowed, the creature is  blinded  and  restrained , it has total  cover  against attacks and other effects outside the nightcrawler, and at the start of each of the nightcrawler\xe2\x80\x99s turns, the swallowed creature takes 17 (5d6) cold damage and 17 (5d6) necrotic damage, and it must make a DC19  Constitution  saving throw. On a failed save, its maximum  hit points  are reduced by the amount of necrotic damage it took. If the nightcrawler takes 50 damage or more on a single turn from a creature inside it, the nightcrawler must succeed on a DC25  Constitution  saving throw at the end of that turn or regurgitate all swallowed creatures, which fall  prone  in a space within 10 feet of the nightcrawler. If the nightcrawler dies, a swallowed creature is no longer  restrained  by it and can escape from the corpse using 20 feet of movement, exiting  prone . \n'b'  Sting .  Melee Weapon Attack : +10 to hit, reach 15ft., one creature.  Hit : 13 (2d8 + 4) piercing damage, and the target must make a DC19  Constitution  saving throw. On a failed save, the target is  poisoned  for 1 minute; on a successful save, there is no further effect. At the beginning of each of its turns while it remains  poisoned , it takes 17 (5d6) necrotic damage and has its maximum  hit points  reduced by half the amount of necrotic damage it took that turn. At the end of its turn, it can repeat the saving throw, ending the effect on a success. \n'b'  Summon (1/day) . As an action, the nightcrawler can summon 1d6 greater shadows. These summoned creatures cannot summon or create further thralls or undead, and disappear after being dropped to  0 hit points , or after 1 minute. These greater shadows use the statistics of a  shadow , save that they have a Challenge Rating of 3 (700 XP), their  hit points  are 38 (7d8 + 7), their  Strength  Drain ability has a +5 to hit and deals 16 (4d6 + 2) necrotic damage in addition to their normal reduction to the target\xe2\x80\x99s  Strength  score.'