Alchemist Flask Cannon

Weapon (shotgun), artifact (requires attunement by a Short Rest)

A modified hand-cannon built by the alchemist artificer Cailum that launches a random flask from the Alchemist Flask Table. The cannon does the damage specified in the Alchemist Flask Table.

Alchemical Overcharge: Once per long rest, you can use your bonus action to attack with the Launcher again. Roll a d10. On a critical failure, the weapon will backfire dealing damage to you instead.

1	Acidic Flask	Corrosive blast that deals 2d6 acid damage. CON save - Lose 1 AC until Long Rest.
2	Hazardous Flask	Toxic blast that deals 2d6 poison damage. CON save - Deals an extra 1d4 damage.
3	Ashen Flask	Blazing blast that deals 2d6 fire damage.
4	Ball Bearing Flask	Scattering blast that deals 2d6 bludgeoning damage.
5	Combustive Flask	Concussive blast that deals 2d6 force damage.
6	Frostbitten Flask	Chilling blast that deals 2d6 cold damage. CON save - Reduces movement speed by half.
7	Grimy Flask	Sticky blast that reduces movement to 0 for one turn. CON save - Can not take bonus actions or reactions this turn.
8	Arrowhead Flask	Sharp blast that deals 2d6 piercing damage. CON save - Creature Bleeds for 1d4 damage for two turns.
9	Blinding Flask	Shining blast that deals 2d6 radiant damage. CON save - Creature becomes Blind for one turn.
10	Static Flask	Electric blast that deals 2d6 lightning damage. CON save - Creature becomes stunned for 1 turn.

It’s up to you to decide whether a character has proficiency with a firearm. Characters in most D&D worlds wouldn’t have such proficiency. During their downtime, characters can use the training rules in the Player’s Handbook to acquire proficiency, assuming that they have enough ammunition to keep the weapons working while mastering their use.

This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.

Push. If you hit a creature with this weapon, you can push the creature up to 10 feet straight away from yourself if it is Large or smaller.

Notes: Short Rest, Range, Two-Handed, Ammunition (Firearms), Reload, Push

Previous Versions

Name	Date Modified	Views	Adds	Version	Actions
Cailum's Alchemist Flask Cannon	2/19/2026 5:17:54 PM	10	3	--	Coming Soon

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