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The Prismatic Codex of the Untethered

A drifting volume of obsidian plates and glowing vellum that captures the essence of raw arcane force.

Dungeons and Dragons 5e
Level 13
Wizard
Arcane
3 Signature
Formatobsidian-bound codex
AppearanceThe book consists of twelve thin obsidian plates held together by a central rod of silver. The pages are made of translucent vellum that hums with violet energy and shifts colors based on the reader's mood.
WardsThe codex is protected by an Arcane Lock. If forced open without the keyword Symmetry, a Glyph of Warding triggers, casting a 5th-level Explosive Runes (Force) in a 20-foot radius.

Archmage Xylos the Untethered

Tradition

Wizard

Specialization

Order of Scribes

Arcane Focus

A floating glass prism that refracts light into prismatic sigils.

Demeanor

Detached and analytical, viewing reality as a series of complex equations.

Background

Formerly a master archivist for the High Enclave, Xylos vanished into the Astral Plane after discovering a sequence of prime numbers that allegedly define the Weave itself.

Current Ambition

To locate the Universal Key, a theoretical formula that would allow a caster to manipulate the Weave without vocal components.

Signature Quirk

"He constantly adjusts a pair of gold-rimmed spectacles that lack any actual lenses."

Spells by Tier

Cantrip
2 spells

1st Level
2 spells

2nd Level
1 spell

3rd Level
2 spells

4th Level
1 spell

5th Level
2 spells

6th Level
1 spell

7th Level
1 spell

Marginalia & Annotations

Note

"The resonance of the weave is not a curve, but a series of jagged, interlocking triangles."

Warning

"Never attempt to cast Disintegrate while standing within a Resilient Sphere. The feedback is... messy."

Note

"Day 402 of my exile. The silence of the Astral Sea is the only thing that makes sense anymore."

Note

"A sketch of a hand showing the precise finger positions for the somatic component of Counterspell."

Plot Hooks

•The High Enclave offers a massive bounty for the return of this codex, claiming it contains state secrets.
•A local wizard's tower was recently vaporized from the inside out; the only thing remaining was a single obsidian plate from this book.
•Xylos reaches out through the codex to a new reader, offering them a chance to learn the 'Universal Key' in exchange for their physical tether to the Material Plane.

Flavor Notes

"The vellum pages do not burn and are immune to water damage."

"The book emits a low, constant hum at exactly 440 Hz."

"Reading for more than an hour causes the reader's eyes to glow with a faint violet light for a day."

Use This Spellbook in Your Campaign

This mystical tome contains carefully curated spells perfect for enriching your tabletop RPG sessions. Whether you're a DM looking to arm an NPC spellcaster or a player seeking inspiration for your wizard's collection, these spells provide depth and flavor to your magical encounters.

Tips for Integrating Spellbooks

  • Use the spellcaster profile to create memorable magical NPCs
  • Signature spells can become iconic abilities that define a character
  • Marginalia and notes provide roleplay hooks and world-building details
  • Plot hooks can launch entire adventure arcs or side quests

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