Artwork for Crux Serpentum

Spell

Crux Serpentum

Created by alexiss

The caster traces a luminous cross through the air, and from each of its four cardinal points emerges a spectral serpent wreathed in eldritch fire. These ethereal creatures strike with supernatural speed, ensnaring the target by coiling tightly around their wrists, ankles, and torso while a burning serpentine cross materializes beneath their feet. The spectral bonds grow increasingly constricting whenever the victim struggles, making escape increasingly difficult. Should the target be a spellcaster, the serpents' fangs inject a potent magical venom that floods their arcane channels, rendering them temporarily unable to cast spells or access their innate magical abilities. Even if the bound creature manages to break free from the spectral restraints, the venom leaves behind a lingering serpent-shaped mark upon their skin that persists for hours, serving as a beacon to those trained in hunting mages and detecting magical auras. This mark makes it nearly impossible for the target to hide their magical presence from those who know how to read such signs.

Open in Summon Worlds

At a glance

What this public profile contains

This view-only profile includes a creator-written description; 7 labeled detail fields; 2 structured sections; 1 artwork image supplied by the creator.

Creation type
Spell
Shared by
alexiss
Connected worlds
0
Detail fields
7
Profile sections
2
Artwork images
1

Details

School
Conjuration
Level
3
Duration
1 minute
Range
30 feet
Area of effect
sphere(radius: 10)
Ritual
No
Concentration
Yes

Components

Verbal

A chant invoking the serpentine spirits.

Somatic

Tracing a cross shape in the air.

Material

A small vial of serpent venom.

Effects

Effects

The target is immobilized and must succeed on a Strength saving throw at the start of each of their turns or take 2d6 psychic damage and remain bound. If the target is a spellcaster, they cannot cast spells for the duration. If they escape, they bear a serpent-shaped mark for 6 hours, making them detectable by those trained in tracking magical auras.

Public creation

Worldbuilding Context

Crux Serpentum is a public spell profile shared by alexissthrough Summon Worlds. This view keeps the creator's public information together with clear attribution and links to any connected public Worlds; it does not add story details beyond the fields shown on the profile.

Explore the profile as a standalone creative reference, then open Summon Worlds when you want to connect your own characters, locations, art, and lore inside a living World.

Continue building

Develop the ideas around Crux Serpentum

Use Crux Serpentum as a magic reference when defining effects, limits, costs, visual language, history, and consequences within a consistent setting. Return to the public fields above as a stable reference, then connect new ideas through a World so collaborators can explore how each creation fits the same shared canon.