The Heart-Bloom Grove - AI-generated fantasy Hazard

The Heart-Bloom Grove

A corrupted forest clearing where the vegetation has been twisted by blood magic. The ground is spongy and stained deep crimson, while a central willow tree pulses with a rhythmic, wet thumping sound like a giant heart.

Hazard EntryMagicalLevel5Complex

The Heart-Bloom Grove

5LevelRareRarityForestEnvironment
NecroticPlantCultRitual
Level5
|
HP80
|
AC15
|
TypeMagical
|
ComplexityComplex
|
RarityRare

Defenses

AC15
Hard5
HP80
BT 40
Fort++5 (5E Saving Throw equivalent)
Ref+-2 (5E Saving Throw equivalent)
Will++0 (5E Saving Throw equivalent)
Immune
Poison, Psychic, Prone, Blinded, Deafened
Resist
Bludgeoning, Piercing
Weak
Fire, Radiant
NecroticPlantCultRitual

Detection

PerNot Applicable
Stl15 (DC to notice the subtle magical hum before triggering)
Init20 and 10

An ancient willow tree stands at the center of a 40 foot diameter circle of blackened stones. Its leaves are translucent and veined with red. The surrounding grass has been replaced by a carpet of pulsating, meat-like violet moss that exhales a thin, coppery mist.

Standard Engagement

Trigger

The hazard activates when a Small or larger living creature enters the 40 foot radius area centered on the willow tree.

Routine

On Initiative 20, the Heart-Bloom Grove emits a Blood Pulse. On Initiative 10, the Siphoning Roots lash out.

Reset

The hazard resets automatically after 1 hour unless the central Heart-Root is destroyed or the area is purified with 5 flask of holy water.

Blood Pulse

On Initiative 20, the tree emits a wave of necrotic energy. Each creature in the grove must succeed on a DC 14 Constitution saving throw or take 11 (2d10) necrotic damage and be Poisoned until the end of their next turn. On a success, the damage is halved and the creature is not Poisoned.

Siphoning Roots

On Initiative 10, the meat-like moss and roots grab at intruders. Each creature on the ground in the grove must succeed on a DC 14 Strength saving throw or be Restrained. A restrained creature takes 7 (2d6) necrotic damage at the start of its turn as the roots drain their blood. A creature can use its action to make a DC 14 Strength (Athletics) or Dexterity (Acrobatics) check to escape.

Vampiric Growth

Whenever a creature takes necrotic damage from this hazard, the central tree regains hit points equal to half the damage dealt.

Maddening Rhythm

The constant thumping of the heart-tree is distracting. Concentration checks made within the grove have their DC increased by 2.

Description

A corrupted forest clearing where the vegetation has been twisted by blood magic. The ground is spongy and stained deep crimson, while a central willow tree pulses with a rhythmic, wet thumping sound like a giant heart.

Discovery

A DC 15 Wisdom (Perception) check reveals the rhythmic thumping before entering the clearing. A DC 14 Intelligence (Nature) or Intelligence (Religion) check identifies the flora as magically corrupted and dangerous.

Archival Lore

The Veined Heart cult uses these groves as biological batteries, capturing the life force of woodland creatures to fuel the summoning of entities from the Shadowfell.

Environment
Forest
Theme
Cult Ritual
Creator
The Veined Heart Cult
Purpose
To siphon life essence and guard the approaches to a hidden cult sanctum.
Game System
D&D 5E
Art Style
Visceral dark fantasy, featuring organic textures, deep crimson lighting, and twisted willow branches resembling human veins.
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