Staff of Abjuration

Staff, very rare (requires attunement by an arcane spellcaster)

This staff has 10 charges. While holding it, 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 attack bonus and save DC: resistance (1 charge), shield (1 charge), dispel magic (3 charges), banishment (4 charges), or globe of invulnerability (6 charges).

The staff regains 1d6 + 4 charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff flies off to a random plane to await the next lucky creature that happens upon it.