While attuned to this staff, you are immune to nonmagical bludgeoning damage, and you gain a +1 bonus to your Armor Class.

The staff has 15 charges for the following properties. The staff regains 2d6 + 3 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff crumbles to dust and is destroyed.

Earth Glide. While holding this staff, you can expend 1 charge as an bonus action to gain the ability to burrow through nonmagical, unworked earth and stone until the start of your next turn. While doing so, you don't disturb the material you move through.

Siege Strikes. While holding this staff, you can use an action expend 3 of its charges to deal double damage to objects and structures for 10 minutes.

Spells. While holding this staff, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC and spell attack bonus: bones of the earth (6 charges), earth tremor (2 charges), erupting earth (3 charges), investiture of stone (6 charges), move earth (6 charges), stone shape (4 charges), transmute rock (5 charges), or wall of stone (5 charges).

Notes: Resistance: Bludgeoning, Bonus: Armor Class, Sorcerer, Warlock, or Wizard