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Defilia's Triune Revenant Hydra - AI-generated fantasy Monster

Defilia's Triune Revenant Hydra

The cult of Defilia intended to preserve three worthy servants in death, but the ritual warped under the pressure of betrayal, wizard fire, and a grim reaper's scything hunger. Their bodies were stitched into a hydra frame and their souls forced to inhabit a shared nightmare. The result is a monster that remembers love, loyalty, and martyrdom only as fuel for revenge. Some say the three heads can still be heard planning how to kill the living who replaced them in the cult's favor.

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HugeDragon(Wererat hydra, unique undead-shadow-touched fusion)CR 16Chaotic Evil

Defilia's Triune Revenant Hydra

hydrawereratshadownecroticdragoncultbosseliteuniqueundead
HP245AC18SPD30 ft., climb 30 ft.CR16PerceptionStealthReligionArcana
STR
22
DEX
14
save
CON
20
save
INT
10
WIS
16
save
CHA
18
save
Three Minds, One Body. The hydra has advantage on saving throws against being charmed, frightened, stunned, or paralyzed. It cannot be surprised while at least one head is intact.
Regeneration. At the start of each of the hydra's turns, it regains 15 hit points if it has at least 1 hit point and has not taken radiant damage since the end of its last turn.
Multiheaded Regrowth. If the hydra takes 30 or more damage from a single critical hit or a slashing effect that includes radiant damage, one head is severed. The hydra dies if all three heads are severed. If a severed head is not burned by radiant damage or holy fire before the end of the round, a new head regrows at the end of the hydra's next turn.
Shadow-Blessed Strikes. The hydra's attacks and magical darkness count as magical for the purpose of overcoming resistance and immunity.
Multiattack. The hydra makes three attacks, choosing from Bite, Shadow Claw, or Necrotic Wave. It can replace one attack with Umbral Surge if available.
Bite. Melee Weapon Attack: to hit, reach 10 ft., one target. Hit: 19 () piercing damage plus 7 () necrotic damage.
Shadow Claw. Melee Weapon Attack: to hit, reach 10 ft., one target. Hit: 18 () slashing damage plus 9 () necrotic damage, and the target must succeed on a Strength saving throw or be grappled (escape ). Until this grapple ends, the target is restrained and the hydra cannot use Shadow Claw against another target.
Necrotic Wave. Ranged Spell Attack: to hit, range 60 ft., one target. Hit: 28 () necrotic damage.
Umbral Surge. The hydra exhales a 20-foot-radius wave of roiling shadow centered on a point it can see within 60 feet. Each creature of the hydra's choice in that area must make a Dexterity saving throw, taking 36 () necrotic damage on a failed save, or half as much damage on a successful one. The area becomes magical darkness until the end of the hydra's next turn.
Defilian Rebuke. The hydra channels stolen faith through Illyana's ruined head. One creature the hydra can see within 30 feet must make a Wisdom saving throw or be frightened until the end of its next turn. While frightened this way, the creature also takes 13 () necrotic damage.
Defilian Interdiction. When a creature the hydra can see within 30 feet regains hit points, the hydra targets that creature with a burst of malicious prayer. The creature must succeed on a Wisdom saving throw or take 11 () necrotic damage, and the hit points regained are reduced by the same amount, to a minimum of 0.
Shadow Slip. The hydra moves up to half its speed without provoking opportunity attacks. If it ends this movement in dim light or darkness, it can Hide.
Bite. The hydra makes one Bite attack.
Illyana's Cursed Liturgy (Costs 2 Actions). One creature the hydra can see within 30 feet must succeed on a Wisdom saving throw or take 10 () necrotic damage and be unable to regain hit points until the start of its next turn.
Cantrips
SpellcastingUniversal— The hydra's spellcasting ability is Charisma (spell save DC 17, +9 to hit with spell attacks). It can cast the following spells, requiring no material components: At will: thaumaturgy, toll the dead, command; 3/day each: darkness, spiritual weapon, animate dead; 1/day each: blight, bestow curse.
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