b'Undead Hummingbird Swarm \n'b'  Medium   swarm  of Tiny undead,  chaotic evil  \n'b'  Armor Class  16  Hit Points  27 (6d8)  Speed  10 ft., fly 60 ft.\n'b' STATS STR: 1 (-5) DEX:  21 (+5)  CON:  10 (+0)  INT:  1 (-5)  WIS:  10 (+0)  CHA:  6 (-2)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Skills   Perception  +4,  Stealth  +9  Damage Vulnerabilities  bludgeoning  Damage Resistances  piercing, slashing  Damage Immunities  poison  Condition Immunities   charmed ,  frightened ,  grappled ,  paralyzed ,  petrified ,  poisoned ,  prone ,  restrained , stunned  Senses   darkvision  60 ft., passive  Perception  14  Languages  \xc2\x97  Challenge  2 (450 XP) \n'b' Special Traits \n'b'   Swarm . The undead hummingbird swarm can occupy another creature\xc2\x92s space and vice versa, and the swarm can move through any opening large enough for a Tiny creature. The swarm can\xc2\x92t regain  hit points  or gain  temporary hit points . \n'b'  Actions \n'b'   Pierce .  Melee Weapon Attack : +7 to hit, reach 5 ft., one creature.  Hit : 6 piercing damage. If the target is a creature, the wound bleeds for 1 necrotic damage on each subsequent turn. The wound continues to bleed until it is cured by magical  healing .'