b'Birgemon Seal \n'b'  Medium   aberration ,  unaligned  \n'b'  Armor Class  12  Hit Points  60 (8d8 + 24)  Speed  20 ft., swim 60 ft.\n'b' STATS STR: 12 (+1) DEX:  15 (+2)  CON:  16 (+3)  INT:  4 (\xe2\x80\x933)  WIS:  12 (+1)  CHA:  9 (\xe2\x80\x931)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Skills   Perception  +3,  Stealth  +4  Damage Resistances  acid, cold  Senses   darkvision  60 ft., passive  Perception  13  Languages  \xe2\x80\x94  Challenge  2 (450 XP)  Proficiency Bonus  +2 \n'b' SPECIAL TRAITS \n'b'\n'b'  Frozen to the Spot . When on snow or ice, the birgemon seal can\xe2\x80\x99t be moved against its will. \n'b'  Hold Breath . The birgemon seal can hold its breath for 90 minutes. \n'b'\n'b' ACTIONS \n'b'\n'b'  Multiattack . The birgemon seal makes one Bite  attack , one Toothy Maw  attack , and three Tendril attacks. It can replace all three Tendril attacks with a use of Reel. \n'b'  Bite .  Melee Weapon Attack : +4 to hit, reach 5 ft., one target.  Hit : 7 (2d4 + 2) piercing damage. \n'b'  Toothy Maw .  Melee Weapon Attack : +4 to hit, reach 5 ft., one target.  Hit : 9 (2d6 + 2) piercing damage. \n'b'  Tendril .  Melee Weapon Attack : +4 to hit, reach 15 ft., one target.  Hit : The target is  grappled  (escape DC 13) if it is a Medium or smaller creature, and the seal can\xe2\x80\x99t use the same tendril on another target. If a creature is  grappled  by two or more tendrils, it is also  Restrained . \n'b'  Reel . The birgemon seal pulls each creature  grappled  by it up to 10 feet straight toward it. \n'b'\n'b' BONUS ACTIONS \n'b'\n'b'  Ice Slide . If the birgemon seal moves at least 10 feet in a straight line while on snow or ice during its turn, it can slide up to 40 feet. \n'b'\n'b' ABOUT \n'b' Only a moment before it was a seal with large, glossy eyes. Then its strange bony growths split, revealing a massive, toothy maw.\xc2\xa0Three tentacles reach out from within.\xc2\xa0The birgemon seal is infected with an extraplanar parasite. Sages who have studied birgemon seals discovered the parasites prefer the cold of the arctic and infect only seals. \n'b'  Inherited Parasite . The parasite influences the behavior of the seal, but the infected seal population acts normally, even following the same migratory patterns. Birgemon seals pass along the parasite to their young during birth, leaving whole generations of seals that know no other existence. Though infected seals act as any other seal, seal that aren\xe2\x80\x99t infected tend to stay away from those that are. Shimmer seals kill birgemon seals on sight and have been observed leading uninfected seals in fights against pods of birgemon seals. \n'b'  Symbiotic Existence . The parasite alters its host by forming a toothy, tentacled maw on the seal\xe2\x80\x99s back, but it otherwise doesn\xe2\x80\x99t harm, hinder, or alter the seal. Birgemon seals are content to eat with either mouth, though some prey is far easier for the aberrant maw to hunt and devour. These seals also survive predation more than those that aren\xe2\x80\x99t infected, but birgemon seals killed and eaten don\xe2\x80\x99t infect the predator with the parasite, which dies alongside its host.'