Bag of Boulderstones
Wondrous item, rare
This small mossy bag is filled with round, lichen-covered pebbles, each about 1 inch in diameter. A small note attached to the bag reads “do not throw uphill”. When found, this soft, mossy pouch holds 1d4 + 4 boulderstones, each weighing 1 ounce.
Boulderstone. As an action, you can reach into the bag and throw one of the boulderstones at a point you can see within 60 feet of you, speaking the stones’ command word as you do so. Immediately after landing, the boulderstone magically swells in size, becoming a 5-foot radius boulder weighing 90,000 lbs for the next hour. Any creature in the boulderstone’s space when it swells is shunted to the nearest unoccupied space. After this hour elapses, the boulderstone shrinks back to its normal size and becomes nonmagical.
If thrown on a slope, then, at the GM’s discretion, the boulder rolls 20 feet down the slope on initiative 0 of each round, losing initiative ties. A creature whose space the boulderstone moves through must make a DC 15 Dexterity saving throw. On a failure, a creature takes 4d6 bludgeoning damage and is knocked prone. On a success, a creature takes half as much damage and is not knocked prone. A gargantuan creature automatically succeeds on this saving throw.
Permastone variant: Unlike boulderstones, which are magically enlarged for a short time, permastones are magically miniaturised boulders that permanently regain their normal size when activated. Originally developed to transport stone long distances, permastones are a bit of a liability: a well-aimed dispel magic can turn a pocket full of permastones into a landslide. That being said, they are very useful for blocking a door.
This small mossy bag is filled with round, lichen-covered pebbles, each about 1 inch in diameter. A small note attached to the bag reads “do not throw uphill”. When found, this soft, mossy pouch holds 1d4 + 4 boulderstones, each weighing 1 ounce.
Boulderstone. As an action, you can reach into the bag and throw one of the boulderstones at a point you can see within 60 feet of you, speaking the stones’ command word as you do so. Immediately after landing, the boulderstone magically swells in size, becoming a 5-foot radius boulder weighing 90,000 lbs for the next hour. Any creature in the boulderstone’s space when it swells is shunted to the nearest unoccupied space. After this hour elapses, the boulderstone shrinks back to its normal size and becomes nonmagical.
If thrown on a slope, then, at the GM’s discretion, the boulder rolls 20 feet down the slope on initiative 0 of each round, losing initiative ties. A creature whose space the boulderstone moves through must make a DC 15 Dexterity saving throw. On a failure, a creature takes 4d6 bludgeoning damage and is knocked prone. On a success, a creature takes half as much damage and is not knocked prone. A gargantuan creature automatically succeeds on this saving throw.
Permastone variant: Unlike boulderstones, which are magically enlarged for a short time, permastones are magically miniaturised boulders that permanently regain their normal size when activated. Originally developed to transport stone long distances, permastones are a bit of a liability: a well-aimed dispel magic can turn a pocket full of permastones into a landslide. That being said, they are very useful for blocking a door.
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