Set item layout:

Boom Jug

wondrous item (consumable), very rare

A boom jug is a thick clay vessel filled with an unstable alchemical incendiary. Rather than a normal stopper, the jug is sealed with a torch jammed into its neck. The contents churn and bubble constantly, and anyone carrying one can feel the occasional thump from within, as though the jug itself is impatient.
Boom jugs are not precision weapons. They are tools of overwhelming destruction, designed to turn a battlefield into an inferno. Most sensible adventurers carry them in extradimensional storage and retrieve them only when they intend to use them immediately.

Detonation

As an action, you can throw the boom jug to a point you can see within 60 feet. The jug shatters on impact, scattering burning alchemical gel across a wide area.
Each creature in a 20-foot-radius sphere centered on that point must make a DC 17 Dexterity saving throw. On a failed save, a creature takes fire damage and is set ablaze. On a successful save, it takes half as much damage and is not set ablaze.

Burning ground

The explosion coats the area in sticky incendiary compounds that burn for 1 minute. The affected area becomes difficult terrain for the duration.
When a creature ends its turn in the area, it takes fire damage and becomes ablaze.

Ablaze

An ablaze creature takes fire damage at the start of each of its turns. The flames persist until extinguished. A creature can use its action to extinguish the flames on itself, or another creature within 5 feet can do so. The flames are also extinguished if the creature is submerged in water or otherwise subjected to an effect capable of smothering a fire.

Volatile

Whenever the boom jug is dropped, struck, thrown without detonating, subjected to violent impact, or otherwise handled roughly, roll a d10. On a 1, the boom jug detonates immediately, centered on its current location.
Whenever the boom jug is exposed to fire damage, even while being carried, roll a d4. On a 1, the boom jug detonates immediately, centered on its current location.

Create printable cards for Boom Jug

Lore

No one agrees on who first created the boom jug, but nearly every version of the story begins with the same phrase: "There was once a madman..."

Descriptions vary wildly after that. Some accounts claim he was an alchemist of unparalleled genius. Others insist he was merely a lunatic who survived far longer than he should have. Common details include that he spoke to cats as though they were old friends, held lengthy arguments with inanimate objects, and refused to wear pants under any circumstances. Whether any of these tales are true is impossible to say, though scholars generally agree that anyone who willingly carried the earliest boom jugs was probably not entirely sane.
The inventor's stated goal was allegedly simple: "If a fireball is good, then a fireball that keeps being a fireball is better." The resulting creation spread rapidly among adventurers, mercenaries, goblin sappers, and anyone else with a questionable regard for personal safety.
A persistent rumor claims the creator was not only an inventor but also an entrepreneur. According to the tale, he successfully patented the boom jug and included a clause requiring payment of 1 gp in royalties for every creature killed by one of his devices. The story further claims that, despite being presumed dead for many years, his legal representatives continue to enforce these rights.
Whether these representatives actually exist is a matter of fierce debate. Most dismiss the notion as nonsense. Others point to strange letters that occasionally arrive after particularly destructive battles, each politely requesting payment and threatening legal action for noncompliance.
To date, no court has ever confirmed the validity of these claims.

Tags:actionconsumablefireloreno attunementon fireranged attackthrown