Sisyphean Staff

Staff, very rare (requires attunement by a spellcaster)

This stone and iron staff depicts a man burdened with boulders and punishment. Despite its material, it only weighs 6 pounds. While holding the staff, you have advantage on any ability check or saving throw you make to avoid falling prone. The staff has 10 charges for the following properties, which use your spell save DC.

Magic Boulder. While holding the staff, you can use an action to expend 1 of its charges to magically create and either drop or roll a boulder. If you drop the boulder, it falls at a point that you can see within 60 feet of you; each creature within 5 feet of the point must succeed on a Strength saving throw or take 5d10 bludgeoning damage and be knocked prone. If you roll the boulder, you roll it in a 10-foot-wide line that's 30 feet long, originating from you; each creature within the line must succeed on a Dexterity saving throw or take 3d10 bludgeoning damage and be knocked prone. Regardless of whether you drop or roll the boulder, a prone creature has disadvantage on the saving throw, and the boulder disappears immediately afterward.

Maze. While holding the staff, you can use an action to expend 6 of its charges to cast the maze spell from it. This version of the spell shunts the creature to a special demiplane where it must push a boulder up a long, arduous hill. To escape, the target must use an action and succeed on a DC 20 Strength (Athletics) check to push the boulder up the hill. It takes 3d6 bludgeoning damage each time it fails the check. When the target escapes, it suffers one level of exhaustion.

The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff rusts, crumbles into stone dust and is destroyed.

"You may see fit to imagine the heretic king happy. May that it bring you comfort for your own arduous endeavors.
"But I? I revel in his pain and struggle. The thought that he may yet feel hope, that he may still believe that his torture can near its end, that is more delicious to me than the finest cuisine. For I know, without a shadow of a doubt, that he will invariably find himself once again dashed to the base of the mountain.
"My mountain."