b'Bone Swarm \n'b'  Large  swarm of Tiny  undead ,  chaotic evil  \n'b'  Armor Class  17 (natural armor)  Hit Points  198 (36d10)  Speed  20 ft., fly 60 ft.\n'b' STATS STR: 22 (+6) DEX:  18 (+4)  CON:  10 (+0)  INT:  9 (-1)  WIS:  15 (+2)  CHA:  20 (+5)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Saving Throws   Dex  +8,  Wis  +6,  Cha  +9  Skills   Acrobatics  +8,  Perception  +6,  Stealth  +8  Damage Vulnerabilities  bludgeoning  Damage Resistances  piercing and slashing from nonmagical attacks  Damage Immunities  poison  Condition Immunities   charmed ,  exhaustion ,  frightened ,  grappled ,  paralyzed ,  petrified ,  poisoned ,  prone ,  restrained ,  stunned   Senses   darkvision  60 ft., passive  Perception  16  Languages  Common, Void Speech  Challenge  10 (5,900 XP)  Proficiency Bonus  +4 \n'b' ACTIONS \n'b'\n'b'  Multiattack . The bone swarm makes two Swirling Bones attacks. It can replace one Swirling Bones  attack  with one Death\xe2\x80\x99s Embrace  attack , if available. \n'b'  Swirling Bones .  Melee Weapon Attack : +10 to hit, reach 0 ft., one creature in the swarm\xe2\x80\x99s space.  Hit : 36 (8d8) bludgeoning, piercing, or slashing damage (the bone swarm\xe2\x80\x99s choice), or 18 (4d8) bludgeoning, piercing, or slashing damage (the bone swarm\xe2\x80\x99s choice) if the swarm has half of its hp or fewer. \n'b'  Death\xe2\x80\x99s Embrace (Recharge 5\xe2\x80\x936) .  Melee Weapon Attack : +10 to hit, reach 0 ft., one creature in the swarm\xe2\x80\x99s space.  Hit : The target is  grappled  (escape DC 16) if it is a Large or smaller creature. Until this grapple ends, the creature is  restrained  and any  attack  against the bone swarm has a 50 percent chance of hitting the  grappled  creature instead. The bone swarm can have only one creature  grappled  at a time. The  grappled  creature has advantage on ability checks made to escape the grapple when the bone swarm has half of its  hp  or fewer.\n'b'\n'b' ABOUT \n'b' Dank winds sweep up skeletons, both humanoid and animal. They blow forward, reaching out for living creatures like a clawed hand of bone. A scattering of bones rolls across the ground, then rises into the air, billowing like a sheet. \n'b'  Swarms of Fallen . On rare occasions, the pugnacious spirits of fallen undead join together, bonded by a common craving: to feel alive again. They gather up their bones from life, as well as any other bones they come across, and form bone swarms. \n'b'  Nomadic Undead . These swarms ravage the countryside wresting life from living creatures, grabbing livestock, humanoids, and even dragons, digging in their claws in an attempt to cling to life. Bone swarms with one or more sets of jaws wail constantly in their sorrow, interrupting their cries with snippets of rational, but scattered speech declaiming their woes and despair. \n'b'  Swarm . The swarm can occupy another creature\xe2\x80\x99s space and vice versa, and the swarm can move through any opening large enough for a Tiny  human  skull. The swarm can\xe2\x80\x99t regain  hp  or gain  temporary hp . \n'b'  Undead Nature . The bone swarm doesn\xe2\x80\x99t require air, food, drink, or sleep. \n'b'  Cliff and Pit Dwellers . Bone swarms gather near cliffs, crevasses, and pits in the hope of forcing a victim or an entire herd of animals to fall to its death, creating more shattered bones to add to their mass.'