b'Dragon, Lyngormr, Ancient \n'b'  Family:   Dragon - Lyngormr  \n'b'  Gargantuan   dragon ,  neutral evil  \n'b'  Armor Class  19 (natural armor)  Hit Points  348 (17d20 + 85)  Speed  60 ft., climb 50 ft., swim 50 ft.\n'b' STATS STR: 30 (+10) DEX:  16 (+3)  CON:  30 (+10)  INT:  20 (+5)  WIS:  17 (+3)  CHA:  19 (+4)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Saving Throws   Dexterity  +11,  Constitution  +18,  Wisdom  +11,  Charisma  +12  Skills   Arcana  +13,  Deception  +12,  History  +13,  Insight  +11,  Perception  +11,  Persuasion  +12,  Stealth  +11  Damage Immunities  poison  Condition Immunities   poisoned ,  prone   Senses   darkvision \xc2\xa0120 ft., passive  Perception  21  Languages  Common, Draconic  Challenge  26 (90,000 XP) \n'b' Special Traits \n'b'   Amphibious . The lyngormr can breathe air and water. \n'b'  Contamination . The lyngormr emits an aura of corruption 60 feet in every direction. Plants that aren\xe2\x80\x99t creatures wither in the aura, and the ground in it is  difficult terrain  for other creatures. Any creature that starts its turn in the aura must succeed on a DC 26  Constitution  saving throw or take 22 (4d10) poison damage. A creature that succeeds on the save is immune to this lyngormr\xe2\x80\x99s Contamination for 24 hours. Bird eggs spawn more lyngormr instead. \n'b'  Legendary Resistance (3/Day) . If the lyngormr fails a saving throw, it can choose to succeed instead. \n'b'  Actions \n'b'   Multiattack . The lyngormr can use its Frightful Presence. It then makes two attacks: one with its bite and one with its tail. It can use Swallow instead of bite. \n'b'  Bite .  Melee Weapon Attack : +18 to hit, reach 15 ft., one target.  Hit : 21 (2d10 + 10) piercing damage and the target must make a DC 26  Constitution  saving throw, taking 42 (12d6) poison damage on a failed save, or half as much damage on a successful one. \n'b'  Tail .  Melee Weapon Attack : +18 to hit, reach 20 ft., one target.  Hit : 19 (2d8 + 10) bludgeoning damage. \n'b'  Frightful Presence . Each creature of the lyngormr\xe2\x80\x99s choice that is within 120 feet of the dragon and aware of it must succeed on a DC 19  Wisdom  saving throw or become  frightened  for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature\xe2\x80\x99s saving throw is successful or the effect ends for it, the creature is immune to the lyngormr\xe2\x80\x99s Frightful Presence for the next 24 hours. \n'b'  Poison Breath (Recharge 5-6) . The lyngormr exhales poisonous gas in a 90-foot cone. Each creature in that area must make a DC 26  Constitution  saving throw, taking 77 (22d6) poison damage on a failed save, or half as much damage on a successful one. \n'b'  Swallow . The lyngormr makes one bite attack against a Large or smaller creature it is grappling. If the  attack  hits, the target takes the bite\xe2\x80\x99s damage, the target is swallowed, and the grapple ends. While swallowed, the creature is  blinded  and  restrained , it has total  cover  against attacks and other effects outside the lyngormr, and it takes 56 (16d6) acid damage at the start of each of the lyngormr\xe2\x80\x99s turns. If the lyngormr takes 60 damage or more on a single turn from a creature inside it, the lyngormr must succeed on a DC 26  Constitution  saving throw at the end of that turn or regurgitate all swallowed creatures, which fall  prone  in a space within 10 feet of the lyngormr. If the lyngormr dies, a swallowed creature is no longer  restrained  by it and can escape from the corpse by using 30 feet of movement, exiting  prone . \n'b'  Legendary Actions \n'b' The lyngormr can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature\xe2\x80\x99s turn. The lyngormr regains spent legendary actions at the start of its turn. \n'b'   Detect . The lyngormr makes a  Wisdom  ( Perception ) check. \n'b'  Tail Attack . The lyngormr makes a tail  attack . \n'b'  Chomp (Costs 2  Actions ) . The lyngormr makes one bite  attack  or uses its Swallow.'