Armor Class
22
Natural Armor
Hit Points
487
(25d20 + 225)
Speed
40 ft., Fly 80 ft., Climb 40 ft.
STR
27
(+8)
DEX
18
(+4)
CON
29
(+9)
INT
18
(+4)
WIS
17
(+3)
CHA
23
(+6)
Saving Throws
STR +14, DEX +10, CON +15, WIS +9, CHA +12
Skills
Intimidation +13, Perception +10, Stealth +11
Damage Resistances
Cold, Necrotic, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Condition Immunities
Charmed, Frightened, Paralyzed, Poisoned
Senses
Blindsight 60, Darkvision 120, Passive Perception 20
Languages
Common
Challenge
20 (25,000 XP)
Proficiency Bonus
+6
Traits
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Legendary Resistance (3/Day): If Valtharion fails a saving throw, he can choose to succeed instead.
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Regeneration: Valtharion regains 30 hit points at the start of his turn if he has at least 1 hit point and isn’t in sunlight or running water.
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Frostblood Aura: At the start of each of Valtharion’s turns, each creature within 10 feet of him must succeed on a DC 21 Constitution saving throw or take 10 (3d6) cold damage and 10 (3d6) necrotic damage.
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Innate Spellcasting: Valtharion’s spellcasting ability is Charisma (spell save DC 21, +13 to hit with spell attacks). He can innately cast the following spells, requiring no material components:
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At will: detect magic, fog cloud
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3/day each: darkness, ice storm, shadow of moil
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1/day each: control weather, power word stun
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Actions
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Multiattack: Valtharion can use his Frightful Presence. He then makes three attacks: one with his bite and two with his claws.
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Bite: Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 14 (4d6) necrotic damage. Valtharion regains hit points equal to the necrotic damage dealt.
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Claw: Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage plus 7 (2d6) cold damage.
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Tail: Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.
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Frightful Presence: Each creature of Valtharion’s choice within 120 feet and aware of him must succeed on a DC 21 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 a success.
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Frostblood Breath (Recharge 5-6): Valtharion exhales a chilling, necrotic frost in a 90-foot cone. Each creature in the area must make a DC 21 Constitution saving throw, taking 36 (8d8) cold damage and 36 (8d8) necrotic damage on a failed save, or half as much on a successful save. A creature that fails the save also has its speed reduced by 20 feet until the end of its next turn.
Bonus Actions
Blood Mist Dash: Valtharion transforms into a swirling mist, moving up to his speed (40 ft.) without provoking opportunity attacks. While in mist form, he gains resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks. This form lasts until the end of his next turn or until he attacks or casts a spell, reverting to his normal form. He can use this bonus action once per short or long rest.
Reactions
Vampiric Deflection: When Valtharion is hit by an attack, he can use his reaction to redirect the attack to another creature within 10 feet of him (including the attacker, if applicable). The target must succeed on a DC 21 Dexterity saving throw or take the damage from the redirected attack. Valtharion can use this reaction once per round.
Legendary Actions
Legendary Actions
Valtharion can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time, and only at the end of another creature’s turn. Valtharion regains spent legendary actions at the start of his turn.
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Detect: Valtharion makes a Wisdom (Perception) check.
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Tail Attack: Valtharion makes a tail attack.
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Wing Attack (Costs 2 Actions): Valtharion beats his wings. Each creature within 15 feet must succeed on a DC 21 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. Valtharion can then fly up to half his flying speed.
Mythic Actions
Mythic Action Name. Enter the description for how mythic actions work for your monster here.
Mythic Action Name (Costs # Actions). Enter the description for your mythic action.
Description
Valtharion the Frostblood Sovereign is a nightmarish amalgamation of vampiric and draconic power. His massive, silver-scaled body is marred by necrotic scars, with veins of black, corrupted blood pulsing beneath. His wings, once shimmering with frost, are tattered and streaked with shadow, and his eyes glow with a molten amber hue, flickering with both malice and ancient wisdom. His maw drips with venomous ichor, and his breath weapon—a chilling mix of frost and necrotic energy—leaves a trail of frozen decay. The Heart of the Colossus, embedded in his chest, pulses with a sickly light, fueling his unholy transformation.
Lair and Lair Actions
Lair Actions (Shrunken Castle)
On initiative count 20 (losing initiative ties), Valtharion can take a lair action to cause one of the following effects; he can’t use the same effect two rounds in a row:
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Necrotic Shroud: A 20-foot radius vortex of necrotic mist deals 14 (4d6) necrotic damage (DC 21 Con save for half) and reduces speed by 10 ft. Undead heal 7 (2d6) HP.
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Shadow Portals: Two portals (60 ft. apart) allow Valtharion or undead to teleport. Non-undead take 10 (3d6) psychic damage and are frightened (DC 21 Dex save) if entering.
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Frostblood Surge: The castle’s floor cracks, releasing a wave of icy, necrotic energy in a 30-foot radius centered on a point Valtharion can see. Each creature in the area must succeed on a DC 21 Constitution saving throw or take 14 (4d6) cold damage and 14 (4d6) necrotic damage, and be restrained (escape DC 21) until the end of its next turn.
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