b'Demon, Yek \n'b'  Family:   Demons  \n'b' With a flattened, lupine face and skin pulled taut over its skeletal frame, the creature is terrible to behold. It wears entrails and bones of previous victims over its dark red fur and has black spikes jutting from its spine. \n'b'  Small   fiend  (demon),  chaotic evil  \n'b'  Armor Class  16 (natural armor)  Hit Points  77 (14d6 + 28)  Speed  30 ft., climb 30 ft.\n'b' STATS STR: 16 (+3) DEX:  16 (+3)  CON:  15 (+2)  INT:  9 (-1)  WIS:  13 (+1)  CHA:  10 (+0)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Saving Throws   Strength  +5,  Dexterity  +5,  Constitution  +4,  Intelligence  +1  Skills   Perception  +3,  Stealth  +5  Damage Resistances  cold, fire, lightning  Damage Immunities  poison  Condition Immunities   poisoned   Senses   darkvision  120 ft., passive  Perception  13  Languages  Abyssal, telepathy 120 ft.  Challenge  4 (1,100 XP) \n'b' Special Traits \n'b'   Devouring Swarm . If a creature has three or more yek attached to it from a bite  attack  at the end of its turn, the creature must succeed on a DC 12  Constitution  saving throw or its  Constitution  score is reduced by 1d4 as the demons feast upon the creature\xe2\x80\x99s flesh. \n'b'  Magic Resistance . The yek has advantage on saving throws against spells and other magical effects. \n'b'  Pack Tactics . The yek has advantage on  attack  rolls against a creature if at least one of the yek\xe2\x80\x99s allies is within 5 feet of the creature and the ally isn\xe2\x80\x99t incapacitated. \n'b'  Actions \n'b'   Multiattack . The yek makes one bite  attack  and one claw  attack . \n'b'  Bite .  Melee Weapon Attack : +5 to hit, reach 5 ft., one target.  Hit : 13 (3d6 + 3) piercing damage, and, if the target is Large or smaller, the yek  demon  attaches to it. While attached, the yek  demon  can make this attack only against the target and has advantage on the  attack  roll. The yek  demon  can detach itself by spending 5 feet of its movement. A creature, including the target, can take its action to detach the yek  demon  by succeeding on a DC 13  Strength  check. \n'b'  Claw .  Melee Weapon Attack : +5 to hit, reach 5 ft., one target.  Hit : 10 (3d4 + 3) slashing damage. \n'b'  About \n'b'  Pack of Cannibals . Yek are loathsome fiends, hated by other demons because of their cannibalistic tendencies. They are creatures that do not care what flesh they feed upon but prefer it to be raw and wriggling. Though vicious fighters alone, they are rarely encountered without their pack. Even the most powerful of fiends can be brought down by a pack of yek. \n'b'  Pack Loyalties . The lesser yek demons are completely subservient to their pack leader, sometimes called the alpha yek, and follow that leader\xe2\x80\x99s direction in all things. This includes targets to  attack , to which demon lord to swear obeisance, and when to betray one demonic warlord for another. They always move together as a group, directed by the strongest. When a yek pack leader is slain, the lesser yek scatter in complete disarray. \n'b' They choose another leader within a few days, celebrating the occasion with an unholy feast. Some demonologists have confirmed that the weakest member of the pack is devoured by the new leader during this feast. \n'b' While yek demons usually choose their own masters, they are among the most mercenary of demons and can be bargained with to a greater degree than most. An evil spellcaster can perform a yek summoning ritual (its details shared among malign warlords and wizards) offering \xe2\x80\x9cblood and bone and a stream of rich and constant plunder\xe2\x80\x9d to the demons\xe2\x80\x99 pack leader, in exchange for service against a particular foe. If the plunder and cartloads of bone are not forthcoming (as, for instance, when a foe withdraws from the battlefield), the yek demons invariably take their fee out of their summoner or that summoner\xe2\x80\x99s troops and followers. \n'b' This practice sometimes spreads to merely rapacious and opportunistic armies seeking an edge. For instance, in a controversial move, the armies of the Dragon Empire have begun using yek as shock troops, summoning the fiends behind enemy lines and letting them do the dirty work.'