b'Leech Demon \n'b'  Family:   Demons  \n'b'  Large   fiend  (demon),  chaotic evil  \n'b'  Armor Class  17 (natural armor)  Hit Points  147 (14d10 + 70)  Speed  30 ft., swim 40 ft.\n'b' STATS STR: 19 (+4) DEX:  16 (+3)  CON:  21 (+5)  INT:  11 (+0)  WIS:  12 (+1)  CHA:  7 (\xe2\x80\x932)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Damage Resistances  cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks  Damage Immunities  acid, poison  Condition Immunities   poisoned ,  prone   Senses   darkvision  90 ft., passive  Perception  11  Languages  Abyssal, telepathy 120 ft.  Challenge  11 (7,200 XP)  Proficiency Bonus  +4 \n'b' SPECIAL TRAITS \n'b'\n'b'  Amphibious . The leech demon can breathe air and water. \n'b'  Blood Sense . The leech demon can pinpoint, by scent, the location of creatures that aren\xe2\x80\x99t Constructs or Undead within 30 feet of it. \n'b'  Magic Resistance . The leech demon has advantage on saving throws against spells and other magical effects. \n'b'\n'b' ACTIONS \n'b'\n'b'  Multiattack . The leech demon makes one Bite  attack  and two Tentacle Bite attacks, or it makes two Bite attacks. \n'b'  Bite .  Melee Weapon Attack : +8 to hit, reach 10 ft., one target.  Hit : 14 (3d6 + 4) piercing damage plus 9 (2d8) necrotic damage. \n'b'  Tentacle Bite .  Melee Weapon Attack : +8 to hit, reach 5 ft., one target.  Hit : 11 (2d6 + 4) piercing damage and 4 (1d8) necrotic damage, and the leech demon can attach its tentacle to the target. The demon has two tentacles, each of which can attach to only one target. While a tentacle is attached, the demon can\xe2\x80\x99t use that tentacle to make Tentacle Bite attacks, the target is  restrained , and the demon doesn\xe2\x80\x99t  attack  with the tentacle. Instead, at the start of each of the demon\xe2\x80\x99s turns, each creature with a tentacle attached to it loses 11 (2d6 + 4)  hp  due to blood loss, and the demon gains  temporary hp  equal to that amount. The demon can add  temporary hp  gained from this  attack  together and can add it to  temporary hp  gained from Release Swarm. The demon\xe2\x80\x99s  temporary hp  can\xe2\x80\x99t exceed half its  hp  maximum. The leech demon can detach one or both tentacles as a bonus action. A creature, including the target, can use its action to detach the demon\xe2\x80\x99s tentacle by succeeding on a DC 17  Strength  check. \n'b'  Release Swarm (Recharge 5\xe2\x80\x936) . The leech demon shakes loose dozens of leeches, creating a leech swarm (see Tome of Beasts 2 or use a swarm of poisonous snakes). The swarm acts as an ally of the leech demon and obeys its spoken commands. The swarm remains for 1 minute, until the leech demon dies, or until the demon dismisses it as a bonus action. If the leech demon is within 5 feet of the swarm, it can use its action to consume the swarm, gaining  temporary hp  equal to the swarm\xe2\x80\x99s current  hp . It can add  temporary hp  gained in this way with  temporary hp  gained from its Tentacle Bite  attack . The demon\xe2\x80\x99s  temporary hp  can\xe2\x80\x99t exceed half its  hp  maximum. The demon can have only one swarm active at one time. \n'b'\n'b' ABOUT \n'b' Hundreds of leeches cling to and crawl around this serpentine creature, which has a toothy maw filling most of its face. It raises two tentacles, revealing similar toothy maws lining each tentacle. \n'b' Leech demons prefer to spend their time on the Material Plane, where their unsettling appearance draws more of a reaction and where they can better inflict suffering. They especially enjoy infesting their victims\xe2\x80\x99 bodies with leeches, which burst forth from the corpses to wreck havoc on the victims\xe2\x80\x99 loved ones. \n'b'  Implements of Swampland Revenge . Rumors proliferate about rituals to summon leech demons to right a grievous wrong. The demons gleefully wreak vengeance on their targets and try to ensure their summoners witness the gruesome deaths. The stories fail to disclose the demons demand a price from their callers, usually paid by the life of someone dear to them. Only the most desperate benefit from calling leech demons for retribution, as they often have no problem offering themselves up as payment when the demons complete their deeds.'