b'Spawn of Hriggala \n'b'  Huge   fiend  (demon),  chaotic evil  \n'b'  Armor Class  16 (natural armor)  Hit Points  138 (12d12 + 60)  Speed  40 ft., burrow 30 ft.\n'b' STATS STR: 25 (+7) DEX:  7 (-2)  CON:  21 (+5)  INT:  6 (-2)  WIS:  8 (-1)  CHA:  4 (-3)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Saving Throws   Con  +9,  Wis  +3  Damage Resistances  cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks  Damage Immunities  necrotic, poison  Condition Immunities   poisoned   Senses   blindsight  30 ft., tremorsense 60 ft., passive  Perception  9  Languages  Common, Darakhul, Void Speech  Challenge  10 (5,900 XP) \n'b' Special Traits \n'b'   Magic Resistance . The spawn has advantage on saving throws against spells and other magical effects. \n'b'  Tunneler . The spawn can move through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake. \n'b'  Actions \n'b'   Multiattack . The spawn of Hriggala makes two attacks: one with its bite and one with its tendrils. \n'b'  Bite .  Melee Weapon Attack : +11 to hit, reach 5 ft., one target.  Hit : 20 (3d8 + 7) piercing damage. If the target is a Large or smaller creature, it is  grappled  (escape DC 17). Until this grapple ends, the target is  restrained , and the spawn can\xe2\x80\x99t bite another target. \n'b'  Tendrils .  Melee Weapon Attack : +11 to hit, reach 10 ft., one target.  Hit : 17 (3d6 + 7) bludgeoning damage plus 14 (4d6) necrotic damage. If the target is a creature, it must succeed on a DC 17  Constitution  saving throw or its  hp  maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the creature finishes a short or  long rest . The creature dies if this effect reduces its  hp  maximum to 0. No physical trace of the creature remains when killed in this way. \n'b'  Escape the Material . The spawn burrows at least 20 feet through natural rock and opens a portal to the plane of the undead at the end of this movement. The portal remains for 2d4 rounds. The spawn can\xe2\x80\x99t have more than one portal open at a time. \n'b'  About \n'b' The enormous worm bursts from the floor, its maw surrounded by writhing tentacles that grab everything edible nearby. An echo of chanting issues from its mouth, as if a hundred evil priests were trapped within its gullet, calling out maledictions. \n'b' The spawn of Hriggala resembles a juvenile  purple worm  with a mouth surrounded by wriggling tendrils and full of razor-sharp teeth. It serves the demon lord on the Material Plane, powered by a steady diet of flesh and stone. \n'b'  Called by Ritual . Servants of the undead god of hunger can call up a spawn of Hriggala through ritual and sacrifices. Controlling the hungering spawn once it arrives is another matter. \n'b'  Underworld Tunnelers . The spawn of Hriggala are used to create new tunnels for fiends, darakhul, and other monsters of the underworld. \n'b'  Hungry Demon Nature . The spawn of Hriggala requires no air or sleep.'