b'Death Butterfly Swarm, Greater \n'b'  Family:   Insects Rodents &amp; Vermin  \n'b'  Huge  swarm of Tiny  beasts ,  unaligned  \n'b'  Armor Class  15 (natural armor) \n'b' Hit Points  84 (13d12) \n'b' Speed  5 ft., fly 40 ft. (hover)\n'b' STATS STR: 1 (-5) DEX:  18 (+4)  CON:  10 (+0)  INT:  1 (-5)  WIS:  15 (+2)  CHA:  12 (+1)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Damage Vulnerabilities  cold, fire \n'b' Damage Resistances  bludgeoning, piercing, slashing \n'b' Condition Immunities   charmed ,  frightened ,  grappled ,  paralyzed ,  petrified ,  poisoned ,  prone ,  restrained ,  stunned  \n'b' Senses   darkvision  60 ft., passive  Perception  12 \n'b' Languages  \xe2\x80\x94 \n'b' Challenge  6 (2,300 XP) \n'b' Proficiency Bonus  +3 \n'b' SPECIAL TRAITS \n'b'\n'b'  Potent Poison . As  death butterfly swarm . \n'b'  Swarm . As  death butterfly swarm . \n'b'  Weight of Wings . As  death butterfly swarm  but with DC 15. \n'b'\n'b' ACTIONS \n'b'\n'b'  Multiattack . The swarm makes two Bites attacks. \n'b'  Bites .  Melee Weapon Attack : +7 to hit, reach 0 ft., one creature in the swarm\xe2\x80\x99s space.  Hit : 21 (6d6) piercing damage, or 10 (3d6) piercing damage if the swarm has half of its  hp  or fewer. The target must make a DC 15  Constitution  saving throw. On a failure, it takes 10 (3d6) poison damage and is  poisoned  for 1 minute. On a success, it takes half the damage and isn\xe2\x80\x99t  poisoned . A  poisoned  creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. \n'b'\n'b' ABOUT \n'b' Enormous clouds of orange and green butterflies add a reek of putrefaction to the air, stirred by the flapping of delicate wings. \n'b'  Demon-Haunted . A  death butterfly swarm  results when a rare breed of carrion-eating butterfly, drawn en masse to the stench of decay, feeds on the corpse of a fiend,  demon , or similar creature. \n'b' Dizzying and Poisonous. The colorful, chaotic flapping of the insects\xe2\x80\x99 wings blinds and staggers those in its path, allowing the swarm to necrotize flesh from those it overruns. Attracted to rotting material, the swarm spreads a fast-acting, poison on its victims, creating carrion it can feed on immediately. \n'b'  Devour the Undead . Undead creatures are not immune to a  death butterfly swarm\xe2\x80\x99s  poison. A swarm can rot an undead creature\xe2\x80\x99s animating energies as easily as those of the living. \n'b' Given the choice between an undead and living creature, a  death butterfly swarm  always attacks the undead, finding ghouls and  vampires  particularly appealing. Some good-aligned forces regard summoning these swarms as a necessary evil.'