Staff of Cubic Cultivation (Patreon)

Staff, uncommon

This staff has a perfect cube of blue crystal at its top that slowly drips with a viscous ooze. The staff has 10 charges. As an action, you can tap the head of the staff on the ground and expend 1 or more of its charges to create a 5-foot cube of a mysterious, gelatinous material for each expended charge. Each cube appears in an unoccupied space within 5 feet of you or adjacent to another cube you create as part of this action. The cubes are translucent objects that have AC 10, 20 hit points, and resistance to acid damage. Creating a cube in a space smaller than 5 feet across causes the cube to squeeze and fit the space. A cube remains for 1 minute or until it's reduced to 0 hit points, after which it dissolves into a puddle of slime and vanishes.

You can climb or walk on the cubes. However, their sticky surfaces are considered difficult terrain.

The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the gem on top of the staff shatters and is destroyed, creating a gelatinous cube in its place that's hostile toward you. When this happens, the staff becomes a nonmagical quarterstaff.

The only thing protecting him from the approaching goblins was jelly: a shield of sickly boxes that oozed patiently . As he looked into the wall of translucent mirrors before him, they wiggled in response to the shuddering ground and distorted his reflection. He felt protected, certainly, but ultimately, he felt unsettled.