Sigil of the Ink-Drowned Warden
The Sigil of the Ink-Drowned Warden was cast from the melted-down signet rings of seventeen scholars who died in the Sable Athenaeum — a subterranean library that collapsed when its paranoid head librarian, one Eadric Voss, poisoned the ventilation cisterns to prevent a rival institution from stealing his collected works. Voss himself died last, his lungs black with the same ink-tainted toxin he had brewed, his final act the inscription of a binding glyph meant to tether his consciousness to the most precious remaining artifact. The ring surfaced three centuries later in the hand of a grave-robber who could not stop reciting titles of books she had never read.
Mechanics
A cursed ring of poisoned knowledge that floods the wearer's mind with ghostly library whispers, granting terrible power through toxic ink while slowly replacing their memories with dead scholars' obsessions.
Curse
The ring cannot be removed once attuned unless the wearer is targeted by a Remove Curse spell cast at 9th level or a Wish spell. The curse is not immediately apparent — for the first 1d4 days of attunement, the wearer notices only vivid, unsolicited dreams of long-collapsed library stacks and drowned manuscripts. After that initial period, the Ink Seepage property activates and the wearer begins to perceive ghostly shelves overlaid on every physical space they occupy, imposing disadvantage on Perception checks that rely on sight as their mind fights to process two realities simultaneously. Additionally, once per week at midnight, the ring forces the wearer to make a DC 18 Wisdom saving throw. On a failure, one meaningful personal memory (chosen by the DM — a loved one's face, the name of their home village, the memory of a formative event) is suppressed and replaced by a complete scholarly memory belonging to one of the library's dead patrons. Suppressed memories return only when the attunement ends. A character whose personal memories have all been suppressed in this fashion becomes an NPC under the DM's control until the curse is broken.
Ink Seepage
While attuned to the ring, dark ink-black veins spread visibly beneath the wearer's skin from the ring finger outward. The wearer gains immunity to poison damage and the poisoned condition. Additionally, whenever the wearer takes damage from any source, they may use their reaction to exude a pulse of toxic ink: all creatures within 5 feet of the wearer must succeed on a DC 17 Constitution saving throw or take 2d8 poison damage and become poisoned until the end of their next turn. On a successful save, they take half damage and are not poisoned. This reaction does not require any action economy expenditure beyond the reaction itself.
Ghostly Marginalia
The ring holds 8 charges and regains 1d6+2 charges at midnight. As a bonus action, the wearer can expend 1 charge to mentally access one of the ghost library's texts, gaining advantage on a single Intelligence check or Intelligence (History, Arcana, Nature, or Religion) ability check made within the next minute. The knowledge arrives as invasive whispered prose in an unknown dead language that the wearer somehow understands for the duration.
Venom Codex
As an action, the wearer expends 3 charges to project a torrent of animate poisoned ink from the ring in a 30-foot line that is 5 feet wide. Each creature in the line must make a DC 17 Dexterity saving throw. On a failure, the creature takes 6d8 poison damage and is restrained by hardening ink until the end of its next turn as the pages of a phantom tome wrap around it. On a successful save, the creature takes half damage and is not restrained. The restrained condition can be ended early if the creature or an ally uses an action to tear away the ink (no check required — purely narrative action cost).
The Warden Rises
As an action, the wearer expends 5 charges to momentarily merge with the spectral consciousness of the library's last Warden — a scholar who poisoned hundreds to protect forbidden texts. For 1 minute, the wearer's melee attacks deal an additional 2d6 poison damage on each hit, they can read and understand any written language, and any creature that starts its turn within 10 feet of the wearer must succeed on a DC 17 Constitution saving throw or become poisoned for 1 minute. When this effect ends, the wearer must succeed on a DC 15 Wisdom saving throw or immediately trigger the memory-suppression effect of the Curse (no waiting until midnight) as the Warden's final act of occupation.
Dead Patron's Erudition
Each time the wearer's Curse suppresses one of their personal memories and replaces it with a dead scholar's memory, they permanently gain proficiency in one skill or tool associated with that scholar (DM's choice from: Arcana, History, Nature, Religion, Poisoner's Kit, Calligrapher's Supplies, or Alchemist's Supplies). If the wearer already has proficiency in the chosen skill or tool, they instead gain expertise in it (doubling their proficiency bonus for checks using it). These proficiencies and expertises persist even after the curse is broken and memories are restored.
8 charges
Recharges at midnight
DM Notes
Balance consideration: This artifact is significantly more powerful than typical items for level 5 characters and is intentionally so — artifacts are always outliers, but the DM should deploy it as a campaign-shaping event rather than routine treasure. The immunity to poison and the Ink Seepage reaction are always-on and together are extremely strong at level 5; the DM should ensure early encounters against poison-heavy enemies do not become trivial. The Warden Rises ability costs 5 of 8 charges, leaving only 3 charges after use — this self-limiting design means the wearer cannot chain Venom Codex immediately after, which prevents nova abuse in a single turn. The memory-suppression curse is the primary balancing lever: the DM should track suppressed memories carefully and lean into the roleplay consequences aggressively. The eventual full-NPC outcome is an end-state that should feel earned and dramatic, not punitive — foreshadow it clearly so the player has agency to seek the 9th-level Remove Curse before it becomes inevitable. The Dead Patron's Erudition benefit is intentionally positive and persistent so the ring feels rewarding despite its horror; it also creates an interesting dynamic where players may resist breaking the curse to gain more skill proficiencies. Recommended: introduce this item mid-arc as a corrupting temptation, not as a random drop.
Generated with: Level 5 · Barbarian · Path of the Totem Warrior · Ring · Haunted library · Cursed · Poison · Artifact