This terrifying weapon is not forged so much as modified. The original Glavenus tail has been broken, resharpened, and reinforced into a jagged, oversized greatsword that leaks thick, corrosive fluid constantly. Its blade is a sickly blue-black with pulsing yellow-green veins of acid. The hilt is wrapped in treated monster hide—still damp.
Unlike a standard greatsword, this weapon is heavier, more unwieldy, yet devastating when properly "primed."
Base Stats
Special Property — Acidic Serration
The blade is perpetently crusted with acidic crystals. On a hit, the target takes the 4d6 slashing damage plus an additional 1d8 acid damage.
Additionally, the target must make a DC 16 Constitution saving throw or be afflicted with Acidic Bleed:
-
At the start of each of its turns, the creature takes 1d8 acid damage.
-
If the creature moves more than 10 feet on its turn, it takes an additional 2d6 acid damage (agitated bleeding).
-
The bleed lasts until the creature or another creature uses an action to wash the wound with at least 1 gallon of water, lesser restoration, or similar magic.
Core Mechanic — The Sharpen (Bonus Action)
When the sword is not sharpened, it is clumsy and unbalanced.
As a bonus action, you can perform a special sharpen by scraping the blade against a hard surface (or your teeth, like a Glavenus). This transforms the weapon for 1 minute.
While Sharpened:
-
The weapon gains +6 to attack rolls.
-
On a hit, the target suffers all three of the following (no save for the effects themselves, though initial poison/acid may allow saves per standard rules):
-
Bleed (Physical) – 2d6 slashing bleed damage at the start of each of the target's turns. Stacks with Acidic Bleed.
-
Poison – The target is poisoned for 1 minute. At the end of each of its turns, it can make a DC 16 Constitution saving throw to end the poisoned condition early.
-
Acid – The target immediately takes an extra 2d6 acid damage on hit, in addition to the normal 1d8 acid damage from the base weapon. This also triggers the Acidic Bleed effect (if not already active).
Note: The poison and bleed effects are separate from the Acidic Bleed. A creature can suffer from both a physical bleed and an acidic bleed simultaneously.
Drawback — Unstable Edge
The blade is dangerously modified. Each time you use the Sharpen bonus action, roll a d20 after the 1-minute duration ends:
Mastery Property (Optional — Requires Attunement 24+ hours)
After attuning to the weapon for at least 24 hours, you learn to partially control the instability:
-
When you roll a 1–3 on the Unstable Edge table, you can choose to instead sacrifice 1 Hit Die to prevent the shattering, reducing the roll to a 4–10 effect instead.
-
When you score a critical hit while sharpened, the target automatically fails its next saving throw against poison or bleed effects from this weapon.
Summary Table — Base vs Sharpened
Proficiency with a Greatsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Graze. If your attack roll with this weapon misses a creature, you can deal damage to that creature equal to the ability modifier you used to make the attack roll. This damage is the same type dealt by the weapon, and the damage can be increased only by increasing the ability modifier.
Notes: Bonus: Magic, Damage, Combat, Heavy, Two-Handed, Graze
Comments