Item: Sandcastle
A sandcastle comes in a cylindrical, waterproof satchel that contains densely packed fine sand. The sand's color depends on where it was collected when the item was made. This sand can be shaped and magically activated to create a fortification made of hard-packed sand. It can survive most ordinary weather, but a sandcastle has little resilience against water. It collapses if activated on water or if the structure is caught in a deluge or heavy rainfall. Each 10-foot-by-10-foot section of the wall has AC 10, Hardness 10, and 40 Hit Points. It's immune to critical hits and precision damage, and it has weakness to water 15. If destroyed, a section of the sandcastle becomes a pile of sand, or wet sand if it was destroyed by water. This sand is difficult terrain, which lasts for the remaining duration of the activation. It's easy to make handholds and footholds in the sand walls, so the DC to climb the walls is 15.
Activate—Shape the Castle 1 minute (concentrate, manipulate)
Frequency once per day
Effect You empty the satchel and shape the sand into a miniature castle. When finished, you utter "build" in Petran, and the sandcastle swiftly builds into a full-size structure. The castle is shaped as you choose, up to 120 feet in any dimension. Its walls must be 10 feet thick, and each story must be at least 10 feet tall from floor to ceiling. The sandcastle has only rudimentary furnishings with no moving parts—even a chair or door is too complicated, but block-like benches and platforms can be created. Typically, the castle has little more than staircases and windows.
You can return the sandcastle to its portable form by using one Interact action to fill the item's satchel with sand from the castle.
Trait Effects
Earth: Effects with the earth trait either manipulate or conjure earth. Those that manipulate earth have no effect in an area without earth. Creatures with this trait consist primarily of earth or have a connection to magical earth. These planes are mostly solid. Travelers arriving upon an earth plane risk suffocation if they don’t reach a cavern or some other air pocket within the plane’s solid matter. Creatures who can’t burrow are entombed in the plane’s substance and must attempt to dig their way toward an air pocket. Air creatures are ill at ease, as they rarely have the space to move freely through even the loftiest warrens.
Magical: Something with the magical trait is imbued with magical energies not tied to a specific tradition of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
Structure: A spell, item activation, or ability with the structure trait creates a magical building or other structure. The structure must be created on a plot of land free of other structures. The structure adapts to the natural terrain, adopting the structural requirements for being built there. The structure adjusts around small features such as ponds or spires of rock, but it can't be created on water or other nonsolid surfaces. If created on snow, sand dunes, or other soft surfaces with a solid surface underneath, the structure's foundation (if any) reaches the solid ground. If the structure is on a solid but unstable surface, such as a swamp or an area plagued by tremors, roll a DC 3 flat check each day; on a failure, the structure begins to sink or collapse. The structure doesn't harm creatures within the area when it appears, and it can't be created within a crowd or in a densely populated area. Any creature inadvertently caught inside the structure when it's created ends up unharmed inside the complete structure and always has a clear path of escape. A creature inside the structure when the effect ends isn't harmed, and it lands harmlessly on the ground if it was on an upper level of the structure.
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