b'Stirge Swarm \n'b'  Family:   Stirge  \n'b'  Medium   swarm  of Tiny beasts,  unaligned  \n'b'  Armor Class  15 (natural armor)  Hit Points  58 (13d8)  Speed  10 ft., fly 40 ft.\n'b' STATS STR: 3 (-4) DEX:  19 (+4)  CON:  10 (+0)  INT:  1 (-5)  WIS:  12 (+1)  CHA:  6 (-2)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Skills   Perception  +7  Damage Resistances  bludgeoning, piercing, slashing  Condition Immunities   charmed ,  frightened ,  grappled ,  paralyzed ,  petrified ,  prone ,  restrained , stunned  Senses   darkvision  60 ft., passive  Perception  17  Languages  \xe2\x80\x93  Challenge  5 (1,800 XP) \n'b' Special Traits \n'b'\n'b'  Swarm . The stirge 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 creature. The swarm can\xe2\x80\x99t regain  hit points  or gain  temporary hit points . \n'b'\n'b' Actions \n'b'\n'b'  Blood Drain .  Melee Weapon Attack : +7 to hit, reach 5 ft., one creature.  Hit : 19 (6d4 + 4) piercing damage, and the some stirges attach to the target. While attached, the stirges don\xe2\x80\x99t  attack . Instead, at the start of each of the stirge\xe2\x80\x99s turns, the target loses 19 (6d4 + 4)  hit points  due to blood loss. The stirge swarm can detach itself by spending 5 feet of its movement. It does so after it drains 10 hit points of blood from the target or the target dies. A creature, including the target, can use its action to detach the stirge swarm.'