Armor Class
19
Glyster
Huge Dragon · Lawful Good
Hit Points
212 (17d12 + 102)
Speed
Walk 40 ft., Fly 80 ft., Swim 40 ft.
CR
15
Traits
Amphibious
Glyster can breathe air and water.
Legendary Resistance (3/Day)
If Glyster fails a saving throw, it can choose to succeed instead.
Actions
Multiattack
Glyster can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Bite
Melee Weapon Attack +12 to hit, reach 10 ft., one target. 18 () Piercing damage.
PiercingClaw
Melee Weapon Attack +12 to hit, reach 5 ft., one target. 14 () Slashing damage.
SlashingTail
Melee Weapon Attack +12 to hit, reach 15 ft., one target. 16 () Bludgeoning damage.
BludgeoningFrightful Presence
Each creature of Glyster's choice that is within 120 feet of Glyster and aware of it must succeed on a DC 17 Wisdom saving throw or become 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's saving throw is successful or the effect ends for it, the creature is immune to Glyster's Frightful Presence for the next 24 hours.
Breath Weapons Recharge 5
Glyster uses one of the following breath weapons.
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item
Lightning Breath
Glyster exhales lightning in a 90-foot line that is 5 feet wide. Each creature in that line must make a DC 19 Dexterity saving throw, taking 66 () Lightning damage on a failed save, or half as much damage on a successful one.
item
Repulsion Breath
Glyster exhales repulsion energy in a 30-foot cone. Each creature in that area must succeed on a DC 19 Strength saving throw. On a failed save, the creature is pushed 60 feet away from Glyster.
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item
Lightning Breath
Glyster exhales lightning in a 90-foot line that is 5 feet wide. Each creature in that line must make a DC 19 Dexterity saving throw, taking 66 () Lightning damage on a failed save, or half as much damage on a successful one.
Lightningitem
Repulsion Breath
Glyster exhales repulsion energy in a 30-foot cone. Each creature in that area must succeed on a DC 19 Strength saving throw. On a failed save, the creature is pushed 60 feet away from Glyster.
Change Shape
Glyster magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (Glyster's choice).
In a new form, Glyster retains its alignment, hit points, Hit Dice, ability to speak, proficiencies, Legendary Resistance, lair actions, and Intelligence, Wisdom, and Charisma scores, as well as this action. Its statistics and capabilities are otherwise replaced by those of the new form, except any class features or legendary actions of that form.
In a new form, Glyster retains its alignment, hit points, Hit Dice, ability to speak, proficiencies, Legendary Resistance, lair actions, and Intelligence, Wisdom, and Charisma scores, as well as this action. Its statistics and capabilities are otherwise replaced by those of the new form, except any class features or legendary actions of that form.
Legendary Actions
Detect
Glyster makes a Wisdom () check.
Tail Attack
Glyster makes a tail attack.
Wing Attack (Costs 2 Actions)
Glyster beats its wings. Each creature within 10 feet of Glyster must succeed on a DC 20 Dexterity saving throw or take 14 () Bludgeoning damage and be knocked . Glyster can then fly up to half its flying speed.