[Draconic Armoury] Tortuga Canon (Patreon)

Wondrous item, rare

When the fire of a drake-kin meets the briny depths of the ocean, seas broil and kelp writhes with draconic ferocity. Fashioned from the scales of a dragon turtle, this sleeve-like device can produce jets of water with the force of a cannon, scalding and entangling its target.

This item has 8 charges and regains 1d6 + 2 expended charges daily at dawn.

Hydro Cannon. As an action while holding this device, you can expend 1 charge to shoot a jet of highly-pressurised water at a creature you can see within 10 feet of you. That creature must succeed on a DC 15 Strength saving throw or take 4d6 bludgeoning damage, be pushed up to 20 feet directly away from you, and fall prone. When you use this property, you can press a button hidden on the inside of the sleeve and expend 1 additional charge to modify the water jet in one of the ways below:

Steam Blast. The water erupting from the cannon is boiling hot. The target must also make a DC 15 Constitution saving throw, taking 4d6 fire damage on a failed save, or half as much damage on a successful one. Being underwater doesn’t grant resistance against this damage.

Entangling Kelp. The water erupting from the cannon contains magically-reinforced strands of kelp, which wrap themselves around the target’s body. If the target fails the saving throw against the cannon, it is also restrained until the end of its next turn. The target or another creature within reach of it can use its action to make a DC 15 Strength check, freeing the target on a success.

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Uncommon variant. The item has 7 charges and regains 1d4 + 3 expended charges daily at dawn. Reduce the save DC of all properties and the DC of the Strength check for the Entangling Kelp property to 13, the damage of the Steam Blast modification to 2d6, and the damage of the Hydro Cannon property to 4d6. The Entangling Kelp modification costs 2 charges to use instead of 1.

Very Rare variant. The item has 12 charges and regains 1d10 + 2 expended charges daily at dawn. Increase the save DC of all properties and the DC of the Strength check for the Entangling Kelp property to 16.

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